propelle推进器, 螺旋将propelv.推进；驱使propellant reservoir堆进储液罐propelling explosive抛掷炸药propellant structure推进剂结构propellant chemistry推进剂化学propellant injection喷气燃料注入propellant charg test发射药试验Propellant management推进剂管理propellant mass ratio推进剂质量比propellant combustion推进剂燃烧propellant grain core推进剂药柱形芯