underground boring
... underground air-conditioning 地下空调 underground boring 井下钻进 underground building 地下建筑物 ...
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VMM允许使用者评估井下钻进的振动剧烈程度，以此来提高钻进效率，还能警告作业者注意振动状况，包括粘卡及涡动等可能损坏MWD和其它井下仪器的现象。
VMM allows users to assess the severity of downhole drilling to improve drilling efficiency and alert them to vibration conditions that could damage MWD and other downhole tools.
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