| 释义 |
pure copper短语¹³¹⁶²⁰⁺³
基本例句
纯铜
In order to control the impurities content in pure/span> copper, it is important to determine trace Pb and Bi in pure copper.
为控制纯铜中杂质元素的指标，准确测定其中痕量元素铅和铋的含量十分必要。 chemyq
The agent proves to be suitable for pure copper, brasses and phosphor bronze and have an obvious brightening effect on these materials.
该清洗剂适宜于紫铜、黄铜、磷铜的表面清洗，对铜材有较明显的光亮作用。 cnki |