基本解釋灰鑄鐵 灰生鐵英漢例句雙語例句In order to improve the properties of gray iron, the B containing pig iron is added to it instead of high priced ferroboron.在灰鐵生產(chǎn)中加入含硼生鐵，代替價格較高的硼鐵合金等，以達(dá)到提高性能的目的。權(quán)威例句It was replaced by a gray lull, all smoke and pig iron.NEWYORKER: Something Like Happygray pig iron更多例句詞組短語短語gray copper pig iron 灰鑄鐵dark gray pig iron 暗灰色生鐵gray pig iron更多詞組