主回路中的蒸汽，不再同水一起循环，而是升腾起来。

Steam within the primary loop, now no longer circulating with the water, rises.

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当1号单元的主安全壳内充满了蒸汽，激进的措施是用海水进行灌注。

With the primary containment vessel of unit one still too full of steam, the radical decision was made to flood it with seawater.

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最后，给出在83 % FP以下的功率运行下进行主蒸汽安全阀定值校验试验的窗口安排与注意事项。

Finally, scheduling and precautions for verification tests of the calibration pressure of main steam safety valve under 83 % FP power level are given.

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