短语词组短语scavenge pad 清洗焊接点scavenge flow 扫气气流scavenge section 回油部分Scavenge model 扫气模型scavenge oil 废油scavenge space 扫气腔;扫气空间scavenge blower 扫气鼓风机;扫气泵scavenge gear 工作齿轮scavenge gears 油泵回油器 返回 scavenge