... 9、 勘探钻机prospecting drill 10、勘探钻孔 prospecting bore 11、勘探平硐prospecting adit ...
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prospecting bore bit 勘探钻头
electrical bore-hole prospecting 电测法钻探
prospecting ĥ bore 勘探钻孔
prospecting E bore 勘探钻孔
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