短語(yǔ)詞組短語(yǔ)jet engine propulsion engine 噴氣發(fā)動(dòng)機(jī)jet -propulsion engine 噴氣發(fā)動(dòng)機(jī);噴氣推進(jìn)發(fā)動(dòng)機(jī)water jet propulsion with engine 泵壓噴水推進(jìn) 返回 jet propulsion engine