钻床

钻床	zuàn chuáng	drilling machine; drill press
钻	zuàn	variant of 钻
钻	zuān	to drill / to bore / to get into / to make one's way into / to enter (a hole) / to thread one's way through / to study intensively / to dig into / to curry favor for personal gain
钻	zuàn	drill; auger / diamond
床	chuáng	bed; couch (furniture that one can lie down on) (CL:张) / bed; bottom (of rivers, oceans, gardens etc) / frame; chassis / classifier for blankets, quilts etc
床	chuáng	variant of 床