Chopsticks can be made of a variety of materials, including bamboo, wood, lacquer, jade, ivory, plastic, aluminum, silver, and gold.

筷子所用的材料的种类则各有不同，所选材料有竹子、木材、漆器、玉石、象牙、塑料、铝、银、以及金。

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The materials from e-waste include iron, copper, gold, silver and aluminum.

电子垃圾中的材料包括铁、铜、金、银和铝。

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The materials from e-waste include iron, copper, gold, silver, and aluminum materials that could be reused, resold, salvaged, or recycled.

电子垃圾中的材料包括铁、铜、金、银和铝，这些材料可以被重复利用、转售、废物利用或回收。

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Mining giants like Rio Tinto, Freeport-McMoran and Glecore figured the roaring Chinese demand for raw materials would bail them out of any mega- takeover that meant borrowing a bundle of debt to diversify into aluminum or gold or copper was the path to growth, higher profits and ecstatic shareholders.

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The stylized mural of the original high, arched, Fifth Avenue entrance, a geometric abstraction of industrial gears and wheels executed in gold and aluminum leaf, had been painted over and partly destroyed by a hung acrylic ceiling and fluorescent fixtures.

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I've seen carbon-titanium monocoques, gold-anodized aluminum pushrod suspension links, chrome-moly subframes with titanium heim-joints and obsessive, horological displays of precision machining.

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