词汇	white lichen
释义	white lichen 医白色苔癣
随便看	piston-type stuffer piston-type transducer piston type variable area flowmeter piston type variable-area flowmeter piston-type variable area flowmeter piston-type wave generator piston underside piston underside pump piston underside pumping piston underside pumpingpup piston underside pump scavengine piston underside pump scavenging piston unit area power piston unt piston, untrue piston vacuum pump piston valve piston-valve piston valve body piston valve bush piston valve chamber piston valve cover piston valve engine piston valve gear piston-valve induction