... EM MWD 随钻电磁波测量 MWD sensors 随钻测量传感器 MWD megaword 兆字 ...
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Measurement-while-drilling (MWD) logging tools, in some cases known as logging-while-drilling (LWD) tools, are drill collars into which the necessary sensors and electronics have been built.
随钻测量测井仪，有时也叫随钻测井仪，是内部装有探测器和电子线路的钻铤。
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