制动系统既是石油钻机中的功能设备又是安全设备，其核心部件为主刹车和辅助刹车。
Braking system is both the functional equipment and safety equipment for petroleum RIGS, with dominating brake and auxiliary brake as its core parts.
制动系统既是石油钻机中的功能设备又是安全设备，其核心部件为主刹车和辅助刹车。
Braking system is both the functional equipment and safety equipment for petroleum RIGS, with dominating brake and auxiliary brake as its core parts.
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