crude lead with silver是什么意思

用法例句

The effects of AgNO3 concentration,the amount of graphite powders and cathode efficiency on silver content and electroplating effect of the silver electroplating graphite powders were analyzed in detail.

研究了镀液中硝酸银浓度、石墨粉加入量和阴极电流密度等工艺条件对镀银石墨粉含银量和电镀效果的影响。

The main sources of silver-containing liquid waste and 5 methods for recovering the silver from them are elaborated systematically.

系统论述了含银废液的主要来源以及从中提取回收银的5种方法。