snatch block

同义词释义

1)snatch block,开口滑轮，开口滑草2)open-gear lubrication,开口齿轮润滑3)floor block,开口滑车4)spool opening,滑阀开口5)snatch block,开口滑车，有盖滑车，转向滑车;紧线滑轮6)Opening four-side pilot valve,负开口滑阀