propelle推进器, 螺旋将propelv.推进；驱使propellant mass fraction推进剂质量比Propellant Loading System推进剂加注系统propellant feeding system工质注入系统Propellant Quantity Gauge推进剂计量propellant additive agent推进剂添加剂propellant servicing area推进剂加注区Propellant Storage Module推进剂存储舱propellantactuated device发射剂驱动装置Propellant Gauging System推进剂测量系统propel the athlete forward推动运动员前进