推進效率 efficiency; propulsive: 推進效率propulsive efficiency: 牽引效率; 推進效率propulsive engine: 推進發(fā)動機high-propulsive efficiency: 高推進效率jet propulsive efficiency: 噴氣推進效率; 噴射推進效率下載手機詞典可隨時隨地查詞查翻譯