A whitesmith is a person who works with "white" or light-colored metals such as tin and pewter.

金属抛光匠是使用“白色”或浅色金属（例如锡和白镴）的人。

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Trapping these systems in periodic potential wells made by intersecting light beams yields optical lattices in which atoms behave as electrons in metals, albeit at a quite different scale.

在周期势阱中研究这个系统，发现相干光产生光学晶格能够使原子具有了金属中的自由离子的性质，尽管看起来截然不同。

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Since metals, including zinc and copper, form part of many animals' diets, so mapping them in fossils could shed light on what the animals fed on 100 million years ago.

包括锌和铜在内的金属，是动物的食物的组成成分，所以标记它们在化石中的分布和含量，可以让我们了解1亿年前这种动物的饮食习惯。

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Meanwhile, the new government says it will sign long-term contracts with Norway's power-intensive light-metals and timber industries to help keep them in world business.

ECONOMIST: Norway

Low demand during 2011 was caused by high rare earths prices from both heavy and light rare earths metals, which despite their fluttering prices, remain historically high.

FORBES: 2012 Outlook: Uncertainty Continues For Rare Earths Prices, China Still Major Player

U.S. economic data released Tuesday was light and had little impact on precious metals prices.

FORBES: P.M. Kitco Metals Roundup: Gold Ends Up on Technical Buying, Bullish Outside Markets