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Terms
for subject
Drilling
containing
普通
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all forms
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in specified order only
Chinese
English
普通
塔形井架
conventional derrick
普通
平头管子
plain end pipe
普通
水泥
natural cement
普通
水-黏土泥浆
conventional mud
普通
钳子
universal plier
普通
钻铤
steel drill collar
普通
钻铤
steel drilling collar
普通
钻铤
slick drill collar
普通
钻铤
smooth drill collar
普通
钻铤打捞矛
regular drill collar spear
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