基本解釋vt.除酮同根派生 decopper相關(guān)詞英漢例句Keywords cobalt sulphate solution purifcation demanganese decopper dezinc; 硫酸鈷;溶液淨(jìng)化;除錳;除銅;除鋅;decopper(ing) 脫銅decopper更多例句