deep exploratory drilling
... 勘探钻井 exploration drilling; explorationdrilling; exploratory drilling; exploratorydrilling; prospect drilling; test boring; trial boring 深层勘探钻井 deep exploratory drilling 勘探钻机 prospecting drill ...
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deep exploratory drilling
深部勘探钻井
以上为机器翻译结果，长、整句建议使用 人工翻译 。