This article reports a method of preparation of metal-copper-powder with cuprammonia by directIy chemical method.

本文报导了一种方法直接从溶液中制取属粉的方法。

This technology is used in the filtration of cuprammonia liquor in the cuprammonia wash section of an ammonia plant with satisfactory results...

该技术于合洗系统过滤液,使效果令人满意。