live steam piping
主蒸汽管道破裂事故 MSLB ; main steam line rupture accident ; steam break accident
主蒸汽管阀旁道 main steamline valve bypass
主再热蒸汽管道 main reheat steam pipework
根据P 91和C12A钢的焊接性能，提出了现场中在P 91主汽管道上加装c 12 A水压闸阀的焊接工艺措施。
According to the welding properties of P91 and C12A steels, the paper presents a welding solution to assemble C12A water pressure valve to P91 main steam pipe in field.
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