你们会有反应堆糟和管道，它们是主边界，事故8到10英寸厚的反应堆槽，还有3到4英寸厚的钢管，那是用来装冷却水的。
Then you have the reactor vessel and piping which is the primary boundary which has an eight to ten inch thick reactor vessel and three to four inch thick steel piping to contain the cooling water.
反应堆压力壳构成了主冷却剂压力边界的主体。
The reactor vessel constitutes the main part of pressure boundary of primary coolant.
本文用时域边界积分方程提出研究半球形核反应堆安全壳在爆炸冲击波作用下动力响应分析的计算模型。
This paper is concerned with the transient responses of semisphere containment structure of nuclear reactor to a blast wave by the boundary element method in time domain.
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