propellant feed system meaning in English

燃料输送系统
推进剂供给系统
推进剂输送系统

As to the experimental study , a test system was designed firstly , which include propellant feed system , cooling system , controlling system and measure system . secondly , a test engine was designed according to the experimental requirement . on this basis , experiments under different working conditions were done , and the results of them were analyzed , which showed the combustion efficiency and stability
实验方面，首先设计了针对三组元发动机推力室工作过程进行试验的试验系统，包括推进剂供应系统与冷却水供应系统、控制系统以及压力、温度、流量的测量采集系统；其次，设计出符合试验要求的缩尺发动机；最后针对所设计的试验系统和发动机，进行了不同工况的试验，对所得数据进行了分析处理，得到了不同工况下燃烧效率和燃烧稳定性特性。