down-hole performance
... down-hole packer 井下封隔器 down-hole performance 井下工作性能 down-hole recorder 井下自动记录仪 ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
井下工业性试验表明，该系统具有良好的工作性能及较高的可靠性，远距离遥控操作实现了安全作业。
The testing results show that the system has a good work ability and high reliability, and could also work safely b...
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