H. Morikawa,A,Okabayasghi,Y,Seto,et al,Abrasion-resistance cast iron material for rolling rolls and composite rolls,European patent,EP0464780,2 July 1991是什么意思_H. Morikawa,A,Okabayasghi,Y,Seto,et al,Abrasion-resistance cast iron material for rolling rolls and composite rolls,European patent,EP0464780,2 July 1991在线翻译_英语_读音_用法_例句