for oil wells meaning in English

油井用爆炸性压裂装置

Slow releasing sold scale inhibitor for oil wells
固体缓释型油井防垢剂的研制
Integral valve design and application for oil well pumps
抽油泵一体式凡尔罩设计与应用
A new low temperature high early strength cement for oil well
一种新型油井水泥低温早强剂
An intelligent monitoring system for oil well
油田井站智能监控系统
Verification regulation of weight indication gauge for oil well drilling
石油钻井指重表检定规程

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