英语词汇copper refining怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	copper refining
释义	copper n — 铜材 n • 铜 n • 铜矿 n • 铜管 n • 警察 n refine v — 完善 v • 炼油 v • 精致 v refine — 提取 • 炼 • 提炼 • 升华 • 炼化 • 提制 copper adj — 铜色的 adj
随便看	office of international relations office of international religious freedom Office of Interpol Office of investigation office of Judge Office of Legal Affairs Office of legal counsel Office of military and Political Affairs Office of national drug control policy Office of national statistics office of naval intelligence Office of origin office of personnel management Office of professional responsibility Office of Public Affairs Office of Public sector information office of punishment office of rail regulation Office of research Office of Resources Office of science and technology policy Office of Secretary Office of Secretary General Office of social welfare Office of special investigations

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copper n —