1. Toolbelts free both hands and lessen the risk of dropping hammers.

2. The results show that the impact actions of drop hammer on the model have triangular impulse shapes, whose max-values have a close relation to hammer momentum and the model stiffness.

3. Aracy drop hammer town south of Highland Village and Ogre cave of trolls.

3. try its best to collect and make good sentences.

4. This paper describes drop hammer hydraulic dynamic calibration device's operating principle and its main function. The problems of the current calibration methods are also studied in details.

5. So the performance of microaccelerometer and instrumental drop hammer machine complies with technology standards.

6. This paper describes drop hammer hydraulic dynamic calibration device's operating principle and its main function.

7. Because of its simplicity and convenience in use, drop hammer test machine is increasingly turned into the situation of important test equipment for studying impact capability of isolator.

8. The epoxy plastic (EP) moulding surface of drop hammer die seriously presented embrittlement and deformation while drop pressing.

9. Experimental results such as drop hammer and susom test of some plastic bonded explosives (PBX) were analyzed.

10. The frame photograph of explosive samples under drop hammer test have a furcate structure, in which the fractal dimension of the explosive is related to its impact sensitivity.

11. The large dynamic testing devices in the US are listed and the drop hammer test is introduced as an alternative test.

12. The basic principle of simple high strain pile test method transformed from measured free fall of drop hammer is given in this paper.

13. The impact experiments of concrete filled steel tubes with fixed-ends were carried out on the drop hammer test machine.

14. From the view of equipment safety design on ship, some limits about drop hammer experiment method are analyzed.

15. A number of shock waves, generated from simulating percussive drilling, have been measured using drop hammer test device and dynamic measurement system for shock wave.

16. The main demands which must be attained for forgings ejection mechanism in drop hammer forging were discussed.

17. On this basis, it is through a series of experiments, including drop hammer experiment, high-speed rotating floor experiment and dynamic simulation experiment to test the performance of the receiver.

18. The main demands which must be attained for forgings ejection mechanism in drop hammer forging were discussed. several patterns and the design essentials of the ejection mechanism were introduced.

19. Over - loading of strong flash pyrotechnic composite was studied by using drop hammer simulation device.

20. This paper presents an experimental investigation on the dynamic buckling of a Kiewitt8 single-layer reticulated shell model under drop hammer impact.

21. The influence of temperature on impact sensitivity of TNT explosive has been obtained by use of drop hammer method.

22. Considering the limitation of the shock experiment of a drop hammer, a shock simulation experiment platform is used to test the shock characteristics of isolators .