Granular bainite, which is obtained in these steels by air-cooling, consists of the ferrite of upper-bainite-ty...是什么意思_Granular bainite, which is obtained in these steels by air-cooling, consists of the ferrite of upper-bainite-ty...在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句