observation of backflow and prewhirl at rocket propellant puminducer火箭推进剂: rocket propellant泵: pump诱导: guide; lead; induce; guidanc ...轮回: coming again and again samsa ...和: mix; blend下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:火箭推进剂泵诱导轮回流和予旋观测，即可在微信中查询翻译
