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for subject
Engineering geology
containing
旋 动
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all forms
Chinese
English
手动螺旋钻
hand auger
无旋流动
irrotational flow
涡旋运动
turbulent motion
螺旋状钻孔随动器
spiral hole follower
齿轮传动蜗杆螺旋
geared worm screw
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