Forepump
前置真空泵, 预抽真空泵
🗣️ 情景例句
Genetics is a whold new industry with huge market potential.
基因是一门新兴产业且拥有巨大的潜在市场。
Pain past is pleasure.
过去的痛苦即是快乐。
Though the doctors did his best, the patient's recovery was slow.
尽管医生竭力医治，但病人恢复缓慢。