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.
专门从事各类挖掘机钎杆及配件生产，并承接国内外各种挖掘机破碎锤修理。 - 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.
针对井口驱动螺杆泵抽油杆柱断脱频繁的问题，应用弹塑性理论分析了抽油杆柱在井中的受力状况。 返回 breaking of a rod