Drill rotary percussion的意思|示意
钻孔旋转冲击
Drill rotary percussion的网络常见释义
旋转打击钻 土木工程编译词汇D-37-SCIdict学术词典-... ... 返循环钻土机 Drill，reverse circulation 旋转打击钻 Drill，rotary percussion 螺旋钻 Drill，screw ...
Drill rotary percussion相关短语
1、 rotary percussion drill 旋转冲唤钻机
2、 rotary-percussion drill jumbo 回转冲击式钻车
3、 rotary-percussion n drill jumbo 回转冲击式钻车
Drill rotary percussion相关例句
In rock drilling process with percussion-rotary drill rotating drilling tool bears two toques: dynamic torque which drives drilling tool into rock mass, and resistance torque of rock mass.
前言：在冲击—回转式凿岩机向岩石钻进过程中，旋转中的钻具承受着两种力矩的作用：一是驱动其旋转的动力矩；二是被钻岩石阻止其旋转的阻力矩。