Hand-held portable power tools. Measurement of vibrations at the handle. Part 3 : rockdrills and rotary hammers.
便携式手提电动工具。手柄振动的测量。第3部分：岩石钻头和旋转锤。
2
In this paper, based on the theory of percussive drilling, the following optimum design of hydraulic rockdrills are studied with the application of wave mechanics.
本论文在冲击凿岩的理论基础上，应用波动力学理论，研究了冲击凿岩系统优化设计中的一些问题。
3
The impact energy is the most important performance parameter of rockdrills.