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单词 Trajectory
例句
1) The missile deflected from its trajectory.
2) My career seemed to be on a downward trajectory.
3) The decision was certain to affect the trajectory of French politics for some time to come.
4) In 1873, however, one was found on a trajectory that brought it in to cross the orbit of Mars.
5) The shuttle was on a curving trajectory towards a point above the centre of the space station.
6) He sees the trajectory of his industrial social formation in contradiction to meeting fundamental human and social needs.
7) Had the trajectory of Labour's industrial growth been altered by the events of 1926?
8) Even as the trajectory of his thought kept rising in the early seventies,(http:///trajectory.html) the clock was ticking on his pet project.
9) They moved upon a level trajectory and travelled at what appeared to be an even and leisurely pace.
10) This section follows the trajectory of an arc in that the attempts gradually fail.
11) The more nearly vertical an object's trajectory, the deeper it penetrates into the atmosphere before catastrophic disruption.
12) Two minutes later they are flying a flat trajectory, tiny white caps flecking the sea way below, and Paul breathes.
13) There is not a smooth trajectory connecting these bony fish ancestors to flatfish lying on their belly.
14) Trajectory calculations could therefore have been done with greater speed and accuracy.
15) Your objectives are lower trajectory, less backspin and, in dry conditions, to run the ball on to the putting surface.
16) The trajectory correction projectile model using impulse was established.
17) The Government is now claiming that inflation is on a downward trajectory.
18) But some of Britain's leading socialists were ready to follow a similar trajectory.
19) Every evolutionary history consists of a particular pathway, or trajectory, through genetic space.
20) The worlds they encompass read end to end don't add up or line up along a single straight trajectory.
21) A pitcher can spin a baseball to make it follow a trajectory in any direction.
22) Neither these, nor a variety of other types of household fit into the stereotypical trajectory through the life course.
23) Furthermore, the detailed picture is much more complicated than the trajectory might suggest.
24) He then uses this analogy with the sentence to describe the trajectory by which the subject constitutes itself through the other.
25) Scrubbing my mouth with my sleeve, I feel the Cathedral lurch beneath me, tilt towards a new trajectory.
26) After one second, controls in the nozzle of the rocket motor start steering the missile on to the proper trajectory.
27) When a vicious tackle leaves him blinded from a spinal injury, his life takes the predictable downward trajectory.
28) A better plan would be to launch from Earth on a trajectory optimized for transfer to Mars.
29) This time a wicked module of rock jutting from an otherwise clear trajectory rapped my ankle as I sped past.
30) The postwar family stories suggest that the family has continued in the same trajectory.
31) It is not difficult to sketch the subsequent trajectory.
32) To this end, we present three kinematical algorithms: generalized inverse algorithm, contact trajectory control algorithm and grasp optimization algorithm.
33) The firing data of projectile were computed by external trajectory procedure.
34) A new spray paint robots control system model and a new Trajectory planning arithmetic.
35) Parametric analysis indicates that the optimal solution's trajectory is piecewise linear, and there is a strong relationship between the breakpoints and the infeasibility phenomena.
36) By using the nonlinear programming theory, a optimal impulse satellite evasive trajectory planning model considering earth oblateness perturbation had been established.
37) But slowing the trajectory of growth is not the same as saying the economy is going to decline," said Art Steinmetz,( ) chief investment officer at OppenheimerFunds Based in New York.
38) Finally, the dissertation designed the fuzzy PD controller of trajectory tracking, which is combined with attitude angle controller, so that the whole flight controller is completed.
39) In like manner, meteors super heat the air along their trajectory, and UFOs not only create their own gravity centers, they also create their own magnetic fields.
40) A flight path pre-planning method and an algorithm for generating flight trajectory control instruction are put forward, which meet the need of low-altitude penetration.
41) After estimation of the after-effect time using tracking measurement trajectory data, a method is proposed to analyze after-effect error.
42) Measurement error is obtained by comparing the designed trajectory and the simulated one.
43) Conclusions Trajectory , Voiding cystourethrography, especially retrograde urethrography, are effective means for diagnose urethral duplication.
44) A COMMENTER, Thomas Hopewell, asks "At what point along the trajectory from touristic phrasebook to Safiresque linguistic mastery do you feel comfortable claiming to 'speak' a given language?"
45) A new dynamic security dispatching method based on trajectory sensitivity is proposed.
46) The curvature rate and well curvature plane angle can be used to make a good description of the influence of the well trajectory parameters on the side fo.
47) The parameter adaptive law is formed, we adjust the parameters to make sure the density of spruce aphides and their predator track the ideal trajectory, the stability of the system is guaranteed.
48) Based on conventional ballistics theory, the mathematical model of the ballistic trajectory which adopts low and high pressure chamber fire mode is established for the small cluster tear bomb.
49) The results show that, the Kuroshio flows along the continental slope of the East China Seas, its trajectory varies along with the slope topography, and some eddies appear on the both sides of it.
50) "We're still on a long-run trajectory that's not sustainable," said Rudolph Penner, a fellow at the Urban Institute and former CBO director from 1983-1987.
51) The simulation results show that the convergence trajectory not only consume less energy but also have small errors and conform to the control requirement of the robot in the unstable region.
52) The trajectory optimization model was established based on the air-to-air missile point - mass dynamic equations and the integral variables were changed according to the optimization algorithm.
53) Taking all into account, 5-5-5-orders piecewise polynomial trajectory mode is more applicable.
54) In this paper, we use artificial fields to steer and control the steering angle and derive a linear velocity control law to guarantee the optimal convergent trajectory.
55) The results of numerical simulation demonstrate that the controller can track the given trajectory primely .
56) Circular cylinder is a basic move along a straight line trajectory can be considered as a collection of the same diameter of the circle, if the horizontal section of film, then it is a straight line.
57) With power reaching rule method the variable structure control makes the trajectory outside the switching surface reach the switching surface in limited time.
58) For the purpose of robot's trajectory planning in such environments, a decision function and a corresponding planning strategy are constructed.
59) Their scalar product formula is used for the calculation of trajectory deviation.
60) This study is helpful for well trajectory control in field drilling.
61) Due to its importance in theory and application, the trajectory planning and its control of industry robot has been paid enough attention by researchers in the world.
62) Kim said one North Korean artillery shell is believed to have fallen south of the maritime line, citing a preliminary analysis of the trajectory of the shell.
63) I have expertise in blood pattern identification (blood spatter), trajectory determination, serology (blood and body fluids), and photography.
64) We analyse the locomotion equation, trajectory parameter, trajectory ellipse parameter , average angel velocity formula under the condition that we only think about the G-force.
65) Secondly, the article calculates a number of ballistic flight trajectory in the use of six degrees of freedom rigid body model, provides the parameters for design the control system.
66) a tennis ball in class like this, then the whole trajectory is... the whole trajectory is in one plane in the vertical plane.
67) Movement rule of missile-borne mechanism under the trajectory environment is the important basis and foundation of the fuze design, the development(), and the fault analysis and performance evaluation.
68) Judging by its current trajectory, we can expect to see the swap-on-top to happen sometime within the next year—due to the cannibalization of Windows Vista and Windows XP by Windows 7.
69) Under this arrangement, three rules deal with a combination of trajectory recognition algorithm.
70) We apply the strategy to the trajectory tracking control of a three-wheeled vehicle and the performance is quite well.
71) Harris, a New Zealander by birth, says they are evidence of the evolutionary trajectory that led to Homo sapiens , the human species , who would eventually journey to the moon.
72) At last, the thesis compares error propagation of different trajectory and different observation station distribution through computer simulations.
73) Optimal control of tactical maneuver for a high-performance aircraft is investigated in flight trajectory.
74) Engineering drawing system can draw two dimension curve graphs, main detail drawing and assembly drawing. The curve of internal trajectory and dynamic simulation of particle external trajectory.
75) If birthday is a plane train, then, the starting point is the mother, trajectory bespread is parents' hardship, the window across is friends blessing.
76) GPS data collection and preservation, trajectory playback of the source.
77) Thrust vector misalignment is an important factor, which causes trajectory scatter and affects missile reliability.
78) Simulation results show that the interceptor could hit the target directly by means of the trajectory control system and the altitude control system.
79) A typical wind trajectory across the Pacific is westerly, since there is often a large dome of high pressure over the central Pacific and an area of low pressure in the Gulf of Alaska.
80) The heavy particle collisions are investigated by the quantum-mechanical molecular-orbital close-coupling (MOCC), classical- trajectory Monte Carlo (CTMC) and continuum distorted wave methods.
81) The terminal trajectory parameter optimization of trajectory correction projectiles was studied with orthogonal design.
82) In this article, a water-exit trajectory mathematic model of unpowered missile carrier is developed and validated by the carrier model tests on the sea.
83) And the trajectory of close - loop system is not necessary to discussion on the sliding surface.
84) The continuous wave radar is the main tracking equipment for trajectory observing at present. Estimation and calibration of system errors have important significance.
85) The papers put forward a measure method of outside trajectory in weapon test range.
86) Natural Parameter Method is a kind of new method of wellbore trajectory computation succeeding Cylinder Helix Method(Radius of Curvature Method) and Minimum Curvature Method.
87) On the basis of the analysis of types and principles of trajectory diffusing techniques for rocket ejection seats, the lateral seat trajectory diffusing is modeled.
88) A smooth velocity profile is obtained by the connection of the S-shape for the trajectory and the curvature based on the corner.
89) Then, to formulate a smooth hip motion using a third-order spline function with the largest stability margin, and derive the hip trajectory by iterative computation.
90) Spacecraft reentry trajectory optimization is a kind of optimal control problem.
91) Then the means of off-line programming are researched deeply and preconcerted trajectory of the robot is realized and demonstrated by examples.
92) The matching problem of terminal maneuver and terminal guidance trajectory of anti - ship missile is analyzed.
93) However, an unintended audience – the credit crisis – accelerated my trajectory.
94) They're always two-dimensional, because the trajectory itself is in a vertical plane and so we normally...
95) Objective:To observe clinical effect and complications of treating ureterolith through aerodynamic trajectory lithotrity by ureterorenoscope(URS).
96) The controlling and guiding theory of the wake homing torpedo and its trajectory features are analyzed.
97) Worse was the sense that little could be done near term to alter this now - accelerating trajectory.
98) The direct shooting method solving finite thrust trajectory optimization is studied.
99) To the known bounded reference input trajectory, it can be proved the closed-loop is BIBO stable,(http://) and the output will track the reference input asymptotically.
100) Now, another useful notion is the unit vector to the trajectory.
101) Loading trajectory is the key factor for aircraft skin stretch forming.
102) Research of myth history focuses on the interaction between myth and society, and understands its historical development in social contradictions and movement trajectory .
103) A mathematic model of using trajectory equations for firing data is presented.
104) The chaotic trajectory of the controlled 4-D system can be controlled to return to its zero balance point under different initial conditions.
105) Conclusions Trajectory, Voiding cystourethrography , especially Retrograde urethrography, are effective means for diagnose urethral duplication .
106) My life - trajectory was tugged and defined by the gravity of Carl Sagan.
107) A dynamical servo control strategy was proposed to control the terminal of an underactuated 2-link robot to track a given trajectory or an object during its brachiation.
108) Pedicle screws(3.5 mm diameter) were placed in the pilot holes. The spines were then dissected to separate the vertebrae, and the trajectory of the screws was visually inspected.
109) The aim of advanced batch control strategies is to track the pre-set trajectory in a fast and exact way under the limit of operation condition and restriction.
110) The implementation of this photoelectric trajectory measuring system and the hardware design of its computer control system are mainly discussed, including algorithm and programming steps.
111) This paper presents the design method of this type of nonlinear adaptive control system and its out loop trajectory tracking controller.
112) Accurate prediction of BHA deflecting capacity is very important for precise well trajectory control.
113) This paper analyses the trajectory of GPS automatics homing system in constant wind fields , and discusses the condition under which the gliding parachute system could reach preassigned location.
114) Smoothing of trajectory imply that linear dynamical system is stochastic trajectory modeling.
115) The study shows that to accurately describe the trajectory and better use of geologic guiding tools is one of the principal means for improving the drilling rate.
116) To research the trajectory design method for terminal area energy management(TAEM) of reusable launch vehicle(RLV), the method basing on nonlinear equations of motion is designed.
117) In order to study the electronic differential control of Hybird Electric Vehicle, a novel method is introduced by analyzing the trajectory.
118) The trajectory planning of robot can be done in joint space coordinate and Cartesian space coordinate.
119) The steady-state error under step input is predicted and the reference trajectory for steady-state error is generated in the algorithm.
120) In this paper, the trajectory of particles and material line are calculated with the lagrangian method on an isentropic surface.
121) The effects of wave length with constant wave height rudder angle and ship speed on the deviation of turning trajectory are discussed.
122) In 2008 It'seemed impossible to ignore the upward trajectory of commodities prices.
123) The trajectory type energy dissipator is one of the most widely used dissipator in flood discharge works in our country.
124) The GNC algorithms designed are embedded in the trajectory model. The results show that the simulation structure is valid and the GNC schemes are feasible.
125) A method for generating the trajectory of spray painting robot directly is provided.
126) Both the heading angle calculation and the invariable-information of target trajectory are deduced to estimate the target bearing.
127) The simulation examples show that the suction force and the adhesion coefficient have great influence on the trajectory of motion of WWCR.
127) is a online sentence dictionary, on which you can find nice sentences for a large number of words.
128) For the minimum control energy reentry trajectory with fixed terminal time and the minimum total heat load reentry trajectory, some key problems such as parameterized method are discussed in detail.
129) Finally, the clutch model is verified through an experiment that the end of manipulator runs along a space half circle trajectory in small range, and the advanced compensation methods are proposed.
130) The trajectory problem was cast as the optimal control problem and Pontriaghin Maximum Principle was used to obtain first order necessary condition.
131) The wide-angle sky screen can be used for measuring the terminal velocity of the projectile, and providing synchronous signal for other trajectory measurement apparatus as the trigger device of the .
132) The proposed algorithm can extend the CNC's trajectory control function, simplify the part program, and improve machining precision.
133) Fourth, the tendency clear is suspending here, descent trajectory not any change.
134) Afterwards, the ideal response trajectory was tracked through using PID control method. During the tracking process, a discrete kink-wave model was used.
135) And, what it does is it actually integrates the speed of the time to give you the arc length along the trajectory of the car.
136) This trajectory contrasts sharply with what has happened in America.
137) The curvature rate and well curvature plane angle can be used to make a good description of the influence of the well trajectory parameters on the side force acting on bit.
138) This paper analyses the whole task of recognization software according of trajectory correction fuze(TCF), and designs the sub-programs of these program modules.
139) A useful ellipse equation in relation the trajectory of a station keeping point in an orbital plane is obtained.
140) Through the analysis on the cislunar trajectory, and according to the different terminal constraints, the searching step by step method is provided to design the accurate trajectory.
141) Under this scheme, the true motion trajectory of the objects in the video can be well preserved and hence avoid temporal flickering in the reconstructed video.
142) The flight laws, characteristics and point precision of spiral reentry trajectory were studied by simulating calculation.
143) A method for dim ballistic trajectory detection based on multiscale morphological reconstruction is presented.
144) The particle trajectory model and the Monte-Carlo method are employed in this study for modeling the chamber fluid field.
145) In the end, the problem of robot trajectory planning is investigated by the linearization method and Riemannian metric.
146) By quantum jump method, we find that the corrections to its phase for the no-jump trajectory are different when considering adiabatic and nonadiabatic evolutions.
147) A novel trajectory tracking algorithm for flight simulator parallel motion platform is proposed to compensate path deviation and degradation of controller performance due to actuator torque limit.
148) In the test of shooting range , it is called optics measure image which we have gotten images through using optical equipment as film altazimuth -, high speed film equipment -. trajectory camera.
149) This paper mainly studies the optimal transition trajectory of a reentry vehicle.
150) In this paper, authors have developed the optimal control algorithm of the trajectory planning of robot taking the shortest movement time as a quality indicatrix.
151) It is necessary to use curved trajectory to satisfy the combat requirement of shipborne weapon system.
152) The nuke round now fires with the trajectory of a standard howitzer shot.
153) The computing result indicates that multiple midway trajectory correction should be done while a circumlunar satellite is being launched.
154) With a three-screen installation, Heliocentric uses time-lapse photography and astronomical tracking to plot the sun's trajectory across a variety of landscapes.
155) The results indicates that the air combat effectiveness of helicopter air-to-air missile can be increased greatly with the vertical trajectory programming technology.
156) It is pointed out that the expectant trajectory control effect can be achieved by the priority selection of the structural parameter and operative parameter of impulse engine.
157) This paper emphasizingly discusses the design of ant. omatical optimizing trajectory calculation of lunar prober.
158) In 1946, there have been the world's first electronic digital computer "ENIAC", used to calculate the trajectory.
159) Based on the analysis of flight trajectory of ground-to-ground ballistic missile, a simplified mathematical model for missile impact point calculation was set up.
160) After-working impulse is main source to ballistic missile flight trajectory error and hit error.
161) Each panel contains small lenses that concentrate sunlight by 400 times onto strips containing gallium arsenide photovoltaic cells. Dual-axis trackers follow the sun's trajectory.
162) Thus, the perturbation model is updated in a batch-wise manner. After completion of each batch, a batch-wise perturbation model is identified linearized around the control trajectory for that batch.
163) Therefore, the method we adopt to study the trajectory of water diffusing in the polyurethane material is the key point to lower the coefficient of heat conductivity and the prolong service life.
164) The polynomial approximation method is proposed to obtain initial value of filter,[] and this approximation method can be used to realize scanning trajectory estimation.
165) It has great trajectory tracking precision, good robustness and ideal response speed, stability.
166) It will be very useful to analyse the air trajectory of torpedo and sonobuoy and it will be very important to improve the precision of the drop p...
167) The excavating trajectory equation of mine clearing manipulator is built up based on the principle of minimum resistance.
168) At last, the experiment was made to investigate the pedestal looseness by model test rig and the fault signals were analyzed by the 3D waterfall spectra, trajectory and wavelet scalogram .
169) Use distributed simulation methodology, missile trajectory simulation and scene simulation make up a relatively complete flight simulation system through SBS real-time network as intermedium.
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