单词	sub-unites
释义	sub-unites 亚单元
随便看	friction drilling machine friction drive friction-drive friction drive developing machine friction drive hoist friction drive loudspeaker friction driven friction-driven loudspeaker friction driven spools Friction Drive of Self-press friction drive press friction driver Friction drive rollers diameter mm friction driving friction driving device friction driving roller friction driving skid friction drop friction drum friction drums friction-drum winder friction durability friction duty friction dynamometer friction dynamometre