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压力容器为核电厂反应堆冷却剂系统压力边界之一,而主螺栓拉伸关系到这一屏障是否完好,关系到主设备的安全性,对于电厂安全以及工程进度有重大影响;
Pressure vessel is one of the pressure boundary of the reactor coolant system in nuclear power plant. The tension of the main bolt relates to whether the barrier is intact or not, which is related to the safety of the main equipment and has a significant impact on plant safety and project progress.