单词	耳用鼓气球
释义	耳用鼓气球医ear air bag；ear blown ballon
随便看	mechanical contact arc mechanical contamination mechanical contrivance mechanical control mechanical control circuit mechanical control engineering mechanical controllable mechanical controllable pitch propeller mechanical controlled magazine mechanical controlled ventilation mechanical controller mechanical control measure mechanical control measures mechanical control method mechanical control mode mechanical control of rig mechanical control system mechanical control typewriter mechanical convection mechanical converter mechanical conveyance system mechanical conveying mechanical cooling mechanical cooling bed mechanical cooling tower