negative plateＳ短语¹³¹⁶²⁰⁺³ 基本例句 负极板 电磁 The organic agents prescription of lignin, lignin sulfonate, humic acid in negative paste and the effects of them on negative plate performance were studied. 研究了木素、木素磺酸盐、腐殖酸等负极有机添加剂在负极铅膏中的配方及对负极性能的影响。 dictall This machine is designed for all kinds of material negative plate; 本机适应各种材质底片；0757.vd88.com