The development of the HSS (high speed steel) and SHSS(semi high speed steel) rolls, their properties, microstructure, manufacturing process and their future developments are discussed.是什么意思_The development of the HSS (high speed steel) and SHSS(semi high speed steel) rolls, their properties, microstructure, manufacturing process and their future developments are discussed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句