单词	rub stone
释义	rub stone 磨石
随便看	piston stop screw piston stop washer piston striker piston-stroke piston stroke piston-strokes piston stuffing box piston supercharger piston swept volume piston-swept volume piston tail rod piston Tee ring piston temperature piston throttle piston thrust piston tohead clearance piston to head clearance piston top piston top insert piston-top surface piston travel piston tube piston tube assembly piston tube nut piston tuned circuit 252252211 252252212 2522534 252253411 252253421 2522535 252254352 252311134 252311244 252311312 漏开漏报漏挂漏捐漏接球漏数漏斗漏斗儿漏板漏板