【《日本原子》1980年7月号报道】反应堆的安全性主要是不让裂变产物和放射性物质泄漏出来。原则上说来,裂变产物是不会从燃料包壳中跑出来的,燃料组件外边还有能经受住冷却剂的高温、高压的压力容器和种种管道。能承受一定压力的安全壳又把核电站的这些关键设备包在中间。为了不使任何放射性物质泄漏,必须确保高质量地 [Japan Atomic Report, July 1980] The safety of reactors is mainly to prevent the leakage of fission products and radioactive materials. In principle, the fission products do not run out of the fuel cladding. There are pressure vessels and various pipes on the outside of the fuel assembly that can withstand the high temperature and pressure of the coolant. The containment vessel, which can withstand a certain amount of pressure, envelopes these key equipments of the nuclear power plant. In order not to leak any radioactive material, it must ensure high quality