directional-survey tool
... directional 定向的 directional-survey tool 定向测量工具 directional-type tricone bit 定向型三牙轮钻头 ...
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井底钻具组合经常包括一个泥浆马达、定向钻进及测量设备、随钻测量工具、随钻测井工具和其它特殊的装置。
Oftentimes the assembly includes a mud motor, directional drilling and measuring equipment, measurements-while-drilling tools, logging-while-drilling tools and other specialized devices.
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