西昌卫星发射塔架液压系统
Xichang satellite launching tower hydraulic system.

　　该液压系统将运载火箭固定在发射塔架上，运载火箭发射点火后，再将它和发射塔架脱开。
　　It is used for mounting the carrier rocket on the launching tower. When the carrier rocket is fired up, the system will then separate the rocket from the launching tower.