The fire resistance behaviour and design of CFST columns are one of the key issues in practice due to the steel tube being exposed to air.
因钢管外露，钢管混凝土柱的抗火性能与设计是其在工程实践中的关键问题之一。
The effect of Jet-Pump in the transient procedure of natural circulation and the resistance behaviour of Jet-Pump in the different flow condition have been analyzed.
分析了喷射泵在压水堆一回路自然循环过渡过程中的作用以及在不同流动条件下的阻力特性。
Basically, those steel pipe materials which, with adequately high strength, show sufficient toughness, good welding behaviour and resistance to corrosive media are in demand.
基本上，这些需求的钢管材料，都具有足够大的强度，韧性，良好的焊接能力以及耐腐蚀介质。
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