Based on the analysis of the weldability of T91 steel and combining the practical experience of power plant, the welding technology of T91 and high-temperature superheater header was put forward.是什么意思_Based on the analysis of the weldability of T91 steel and combining the practical experience of power plant, the welding technology of T91 and high-temperature superheater header was put forward.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句