下冲
下冲[xià chōng]1.■underwashing; piping; underswing; underscouring; undermining; undercut; undercutting; undershoot; downthrust下冲程 down stroke下冲失真 underthrow distortion
下冲[xià chōng]1.■underwashing; piping; underswing; underscouring; undermining; undercut; undercutting; undershoot; downthrust下冲程 down stroke下冲失真 underthrow distortion
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