n.油井维修;
例句:
1、
But some workover tools can't meet the needs of operation quality and safe.
但某些工具在施工中不能完全满足施工质量和施工安全的要求.
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2、
Developing external markets in downhole service requires well workover operators'higher quality.
井下作业外部市场的开拓,对修井作业员工的素质提出了较高的要求.
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3、
It's widely used in oil fields with workover rig, well-machine and other mechanical engineering.
广泛应用于油田用修井机 、 通井机及其它工程机械.
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