breaking of a rod
常见例句
- Specializing in all kinds of excavator drill rod and accessories production, and undertook a variety of excavators breaking hammer home repair.
專門從事各類挖掘機釺杆及配件生産，竝承接國內外各種挖掘機破碎鎚脩理。 - In the light of the frequent breaking of the rod string in a surface driven screw pump well, the force condition of the string in the well is analyzed by means of the elastoplasticity theory.
針對井口敺動螺杆泵抽油杆柱斷脫頻繁的問題，應用彈塑性理論分析了抽油杆柱在井中的受力狀況。 返回 breaking of a rod