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borehole collar
meaning in English
钻孔口
Related Words
borehole
borehole spacing
advance borehole
borehole noise
borehole stressmeter
borehole deviation
borehole pump
borehole specimen
borehole logging
borehole penetrometer
borehole colla e
borehole collapse
borehole compe ated mode
borehole compe ated sonic log
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