electrum []以下由轻松背单词网站提供
单词级别附加级基本释义n. 琥珀金(银金矿) 金银合金参考例句Gold mainly exists as gold minerals , including electrum, silver - bearing native gold. 金以矿物态为主,金矿物主要为银金矿 、 含银 自然金. 来自互联网Most natural electrum also contains copper, iron, palladium, bismuth, and perhaps other metals. 大部分天然银金矿含有铜 、 铁 、 钯 、 铋, 可能还有其它金属. 来自互联网 推荐阅读 |