percussive drilling

常见例句

However, the SEP in diamond rotary drilling was higher than the SEF in percussive drilling in lightly weathered hard as well as in extremely hard rock.
在微风化的坚硬与极坚硬岩石中，金刚石旋转钻进比功则明显高于冲击凿碎比功。
In this paper , based on the theory of percussive drilling , the following optimum design of hydraulic rock drills 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。
This instrument, simple in structure and of multi-function, may be used to measuring the drillability and abrasivity of rocks, and simulate rotary or rotary-percussive drilling as well.
该仪器结构简单，具有多种功能，可进行回转或冲击回转钻进法的可钻性测试及钻进规程的模拟，也可用来测试岩石研磨性。