1. Low noise, libration, power consuncption.

2. Notice no heavier strike or libration in course of moving.

3. Owing to the phenomenon of libration it is possible to observe up to 60% of the total lunar surface.

4. Varying regularity of libration period on overweighted compound pendulum was obtained by theoretical reasoning?research and analysis.

5. Chaotic planar libration and its control of a magnetic rigid spacecraft with internal damping in an elliptic orbit near the equatorial plane of the earth are investigated.

6. Low energy cost transfer between Libration points and planets can be achieved by using invariant manifold.

7. Especially, the author researches the coupling libration of water and dam detailedly.

8. This article summarized some aspects of libration feeder's design installation modification and application in Tongkeng coarse Tin ore separated project. It is a good reference to similarly design.

9. Chaos and its control in the planar libration of a magnetic rigid spacecraft with internal damping in an elliptic orbit are investigated.

10. This article summarized some aspects of libration feeder's design installation modification and application in Tongkeng coarse Tin ore separated project.

11. The concept of controlling electrical machinery libration and noises in the process of electrical machinery maintenance is first presented in the paper.

12. In this paper the way of static condensation is used to eliminate the other displacement couplinged with the vertical displacement and get the characteristic matrix equation of the vertical libration.

13. A possibility of applications of proposed algorithms to control libration angle of satellite was illustrated.

14. The vibrant displacement of bearing seat is intensified at the moment of lose power, but after a certain period rotor shaft libration changes.

15. The Moon's actual radius varies as a function of position angle and libration because of the irregularity in the limb profile.

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16. RICH series Z screw air compressor owns high efficiency, low noise, little libration , small size , less cost, convenient to maintain , nice figure , and easy to operate etc .

17. A kind of design for communication module of the libration data monitoring system based on CAN bus is introduced.

18. OG series Z screw air compressor owns high efficiency, low noise, little libration , small size , less cost, convenient to maintain , nice figure , and easy to operate etc .

19. Orbits of this type can be positioned near collinear libration points, and for simplicity it is adequate to take linear terms into consideration in the control process.

20. Moreover alveolus clearances in transmission machine could submerge the rotor's libration so as to decrease loads' dithering.

21. Through optimizing design to fulfill strong steel structure, and to ensure the machine weaving abb with high speed, strong power and small libration.