常見例句The preparation,properties and application in confriction of the two-layer composites with metal as the substrate and polyamide as the liner are intoduced. 介紹以鋼為襯底,聚酰胺為襯里的二層復(fù)合材料的制備、性能及其在摩擦方面的應(yīng)用。 返回 confriction