suction pit吸水坑suctionn.吸；吸入；吸水管v.抽吸；吸出suction rubber tubing吸管suction feed type gun吸入式喷枪suction aspirator tip吸引器头suction foam inductor吸入式泡沫比例混合器suction pipe strainer吸水管滤网suction cup electrode吸杯电极Suction contamination回吸污染suction slot location吸气位置suction ironing table吸风整熨工作台suction off-loading吸力放油