In this paper,the weldability and HAZ toughness of 20HR thick plate were studied , the experimental results provided the basis for making up the welding procedures of nuclear power equipment.是什么意思_In this paper,the weldability and HAZ toughness of 20HR thick plate were studied , the experimental results provided the basis for making up the welding procedures of nuclear power equipment.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句