High delivery lift and high backpressure required in fuel throttle valve test were obtained through higher rotation speed of the main pump.

利用长征系列发动机主泵作为动力源，提高其转速，解决了燃料节流阀试验要求的高扬程、高背压等技术难题。

youdao

We devoted to provide high–quality products, perfect service, quickly delivery, and provides customers with all-round, safety and efficient high-altitude operation and goods lift solutions.

致力于提供高质量的产品，完善的服务和快捷的供货，为客户提供全面、安全、高效的高空作业和货物举升方案。

youdao