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.
摘要：大亚湾核电站及岭澳核电站目前共有各种泵组3000多台，其中A SG辅助给水泵系统属于核安全设备。
Abstract: Daya bay and ling ao nuclear power plant at present there are various kinds of pump group of more than 3000 units, the ASG auxiliary feed water pump issue belongs to nuclear safety.
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