copper powder短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 铜粉,红铜粉 Silver- copper/span> powder was prepared by plating silver on micron sized copper powder, its properties were examined, and the test results obtained were then analyzed in this discussion. 采用化学沉积法在微米级铜粉上镀银，并对得到的镀银铜粉的性能进行测试，对得到的结果进行了分析。 cnki