短語(yǔ)詞組短語(yǔ)constant vacuum fuel pump 連續(xù)真空燃料泵vacuum -pump line 真空泵管道vacuum screw pump 螺桿真空泵vacuum displacement pump 容積式真空泵;容量式抽氣機(jī)vacuum centrifugal pump 離心式真空泵;[機(jī)]真空離心泵;真空離心泵vacuum priming pump 自吸泵VACUUM ROTARY PUMP OIL 真空幫浦油 返回 vacuum pump