释义 |
fine copper短语¹⁴⁴⁹⁷²⁺² 基本例句 纯铜 High-pure copper mainly comes from copper electrorefining.高纯铜主要来源于铜的电解精炼。 Bronze has a higher strength than pure copper, is easily cast, has improved machinability, and is very easily joined by soldering or brazing.青铜比纯铜强度更高,易于铸造,具有改良的机械加工性,易于采用焊接或铜焊进行连接。 |