Here is the brief introduction of the development for the "Zenit" rocket engine and "Cyclone" rocket engine.

简要介绍“天顶号”和“旋风号”运载火箭的研制情况。

youdao

Here is the brief introduction of the development for the "Zenit" rocket engine and "Cyclone" rocket engine.

简要介绍“天顶号”和“旋风号”运载火箭的研制情况。

youdao