[化学 冶金] 改变了铁的物理性质 physical properties: 物理性能; 物理性质alloy with special physical properties: 特种物理性能合金chemical and physical properties: 化学及物理特性examination of physical properties: 物理性能检验override material physical properties: 材质的物理属性下下载手机词典可随时随地查词查翻译