防滴水式电动机 drop-proof type motor

防滴式电动机 drip proof motor ; drip-proof type motor

防滴式电机 drip proof machine

防滴式发电机 drip-proof generator ; drip proof type generator

防滴式感应电动机 proof type induction motor ; drip-proof type induction motor

防滴型电机 drip-proof machine

防滴型电动机 drip-proof motor

防滴网罩保式电机 drip-proof screen-protected machine