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After being smelted with fire assay and enriched with cupellation method,the precious metal is decomposed with chloroazotic acid.

试样经火试金法熔炼和灰吹富集后,贵金属合粒以王,盐酸介质中,用火焰原子吸光光度法测定钯量。

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This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.

离子交萃取色谱中得到了广泛的应用,本文详细总结了离子交析化学中用于碱金属、碱土金属、贵金属、稀土元素、锕系元素等的离与测定。

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knickerbockers, knickered, knickers, knickknack, knick-knack, knickknackery, knickpoint, knife, knife blade, knife edge,

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3G, 401(K), a,

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Scishow 精选系列

There's gold, iron, and lots of other rare, precious metals.

有黄金、铁和许多其贵金属

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英国原版小学语文课

Silver is a precious metal, next in value to gold.

银也贵金属,其价值仅次于黄金。

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看热点学英语

That's the adjective of 'gold', which is a precious metal.

“金”形容词,金一种贵金属

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商务英语大全

The asteroid belt is potentially full of valuable metals, worth trillions and trillions of dollars.

小行星带可能充满了价值数万亿美元贵金属

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双语版 TED-Ed 演讲精选

In addition to precious metals, they unearthed another treasure: dinosaur bones.

除了贵金属之外,们还挖到了另一种宝藏:恐龙骨头。

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BBC纪录片《百件藏品话沧桑》

Before the first Lydian coins, payments were made mostly in precious metal-effectively just lumps of gold and silver.

在货币出现之前,吕底亚支付媒介贵金属,主要金块或银块。

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旅行到地球内部

Super snails and precious metals are just a tiny part of the riches produced by the volcanic machine below.

超级蜗牛和贵金属火山机器所创造财富中一小部分。

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旅行到地球内部

Superheated water laced with precious minerals, gold, silver and iron races up from the volcanic rocks below.

高温水中携带着贵金属,金、银和铁,它们从下面火山岩中涌上来。

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简单心理学

And you might think it's because we associate shiny things with value, from precious metals to glossy packaging.

你可能会认为这因为我们把闪亮东西和价值联系在一起,从贵金属到光滑包装。

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看热点学英语

Yeah. So, marks are symbols and literally, a 'hallmark' is a symbol on precious metal like silver or gold.

么,标记符号,一般来说,“hallmark”指在银或金等贵金属符号印记。

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Kurzgesagt 科普动画

Precious metals and valuable minerals could be delivered to Mars just weeks after they were cut out of their asteroid.

只需要几周时间,小行星上采集贵金属和矿物就可以被运送到火星。

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欧也妮·葛朗台

Come, go and get it, the precious metal.

来吧,去拿吧,贵金属

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2016 ESLPod

A precious metal is a more expensive, a rarer, metal.

贵金属一种更昂贵、更金属。

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VOA Special 2015年7月合集

Luke Chua is sales and operations manager at Bullion Star, a Singapore business that sells gold and other precious metals.

卢克·蔡黄金之星公司销售与运营经理,这一家从事黄金和其贵金属业务新加坡公司。

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成功人士建议

Dell invested his earnings from those jobs in stocks and precious metals.

戴尔将这些工作收入投资于股票和贵金属

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怪诞小镇 第二季 Gravity Falls S02

Apparently, gold is some kind of rare metal.

很明显 黄金确实贵金属

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大神带你过雅思口语

What do you think about people who buy luxurious pens made of precious metals?

您如何看待购买由贵金属制成豪华钢笔人?

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国富论(三)

Frauds are more easily practised, and occasion a greater loss in the most precious metal.

欺诈更容易实施, 并导致最贵金属损失更大。

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2016 English Cafe

You're probably familiar with both silver and another well-known precious metal, " gold."

您可能熟悉白银和另一种著名贵金属“黄金” 。

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2014 English Cafe

" Gold" is a precious metal and a very expensive metal.

“黄金”一种贵金属,也一种非常昂贵金属。

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knife-pleat, knifepoint, knifer, kniferest, knifesmith, knifing, knight, knight errant, Knight Templar, knightage,

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3G, 401(K), a,
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