The rack can be used to work on all kinds of micro-drilling experiments such as analyzing of rock sample drillability, testing of diamond tools aging and life span.

它可在室内从事各种微钻实验，包括岩样可钻性分析、金刚石钻具时效、寿命等实验。

youdao

Transverse excursion process of micro drill in ultrasonic longitudinal vibration drilling is analyzed by using finite element method.

利用有限元技术对微细钻头超声轴向振动钻入横向偏移过程进行深入分析。

youdao

The structural design of a high sensitive micro hole drilling dynamometer and the working principle of the micro hole drilling force measuring system are introduced.

介绍了高灵敏度的微小孔钻削测力仪的结构设计及微小孔钻削力测量系统的工作原理。

youdao

This is a combination of sophisticated steerable drilling technology using modern micro-seismic imaging and advanced material sciences, to create webs of minuscule cracks in shale and release abundant trapped natural gas.

FORBES: Egypt fallout -- follow Exxon and T Boone Pickens; go long natural gas and frack-baby-frack