很多新式反应堆的堆芯，包括日本核设施使用的这些，都由钢制的反应堆安全壳密封。
The nuclear core in many newer reactors, including the ones in Japan, is enclosed by a steel containment vessel.
很多新式反应堆的堆芯，包括日本核设施使用的这些，都由钢制的反应堆安全壳密封。
The nuclear core in many newer reactors, including the ones in Japan, is enclosed by a steel containment vessel.
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