15小时50分钟随着主回路的水泵启动，循环水包围了堆芯。
15 hr 50 min the primary loop's pumps are turned on, which circulate water around the core.
4秒二次回路中的备用水泵自动启动。
4 SEC Backup pumps within the secondary loop automatically turn on.
控制回路具有软启动、稳压功能。
Control circuit has functions as soft starting and voltage stabilizing.
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