propellant mass fraction中文什么意思

推进剂质量比

• propellant:    n. 推进物，推进剂；(枪炮的)发射 ...
• mass:    n. 1.块，堆，团。 2.群众，集 ...
• fraction:    n. 1.小部分，碎片，片断。 2. ...

例句与用法

1. It is an effective new processing way for loading of the solid rocket motor with high loading density , high propellant mass fraction propellant
   为今后高装填密度、高质量比的发动机装药开拓出一条新途径。

百科释义

In aerospace engineering, the propellant mass fraction is the portion of a vehicle's mass which does not reach the destination, usually used as a measure of the vehicle's performance. In other words, the propellant mass fraction is the ratio between the propellant mass and the initial mass of the vehicle.