短语词组短語H -Beam blank 型鋼異型坯h ion beam h 離子束heavy H -beam 大H型鋼h -beam mill 型鋼軋機;型鋼軋機flitch h trussed beam 組郃桁架梁precast H -beam 預制工字梁h steel beam h 型鋼梁hr h -beam 熱軋h型鋼翼緣 返回 h beam