| 单词 | 贵重金属 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔assay〕To be shown by analysis to contain a certain proportion of usually precious metal.经分析含有：经检验证明含某种比率的通常较贵重金属美国传统〔bar〕A rectangular block of a precious metal.贵重金属的长方块美国传统〔chain〕Such a set of links, often of precious metal and with pendants attached, worn as an ornament or symbol of office.项链：这样的一串连结物，经常由贵重金属做成带有垂饰，作为装饰物或职业标记戴用美国传统〔crown〕An ornamental circlet or head covering, often made of precious metal set with jewels and worn as a symbol of sovereignty.王冠：一种环形饰物或头套，通常用贵重金属做成并镶有珠宝，被作为权力的象征而穿戴美国传统〔cupel〕A porous cup, often made of bone ash, used in assaying to separate precious metals from base elements such as lead.灰皿：一种多孔杯，通常用骨类制成，在检验中把贵重金属从低劣物质如铝中分离出来美国传统〔fill〕To cover the surface of (an inexpensive metal) with a layer of precious metal, such as gold.镀：用贵重金属层例如金等覆盖（非贵金属的）表面美国传统〔illuminate〕To adorn (a page of a book, for example) with ornamental designs, miniatures, or lettering in brilliant colors or precious metals.装饰：用装饰性图案、模型、写成亮色或贵重金属质地的字母对（如书页）进行装饰美国传统〔metal〕Silver, gold, and platinum are precious metals.银、金和铂都是贵重金属。剑桥高阶〔precious metal〕Any of several metals, including gold and platinum, that have high economic value.贵重金属：多种具有高经济价值的金属，包括黄金和白金美国传统〔ring〕A small circular band, generally made of precious metal and often set with jewels, worn on the finger.戒指，指环：戴在手指上的小圆环，一般由贵重金属制成并经常配有宝石美国传统Gold is a rare metal. 金子是贵重金属。译典通Platinum and gold are precious metals.铂和黄金是贵重金属。剑桥国际Silver, gold and platinum are precious metals.银、金和铂是贵重金属。剑桥国际 |
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