| 释义 |
Examples:copper (pure copper, as opposed alloy)—copper coin of the Ming and Qing Dynasties—ordinary copper telephone line—bell made of copper or bronze—the 5 metals: gold, silver, copper, iron and tin—copper wall, iron bastion (idiom); impenetrable defense—copper iron sulfide CuFeS2—picture printed from a woodblock, stone, copper plate etc—tophus (fully hydrated copper-aluminium phosphate)—copper azurite 2CuCO3-Cu(OH)2—copper(II) acetoarsenite Cu(C2H3O2)2·3Cu(AsO2)2— |