enrichment gold的用法和樣例：
例句
- In this paper,the determination of gold in anode slimes by the hydroquinone volumetric method is proposed.The separation and enrichment of gold from anode slimes are researched.
本文提出了用氫醌容量法測定陽極泥中的金，研究了如何從陽極泥中分離與富集金的方法，本法的精密度與準確度均好，具有流程短，分析速度快，成本低等優點。
