It has not been tried whether the copper parts can be replaced by other metal parts.

能否用其他金属部件代替铜部件尚未试验。

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In particular, now Intel recommends using new more efficient coolers with copper parts.

尤其，现在英特尔建议用新的更有效的冷却器铜件。

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The no pollution bright pickling passivation technique of copper parts introduced in this pa-per, has neither the toxic chromium containing materials nor nitrogen oxide pollution.

本文介绍的铜制件光亮酸洗钝化工艺，既无有毒的含铬物质，又无氮氧化物污染。

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Even small copper parts stolen from outside homes can leave customers without phones.

BBC: Police target ?770m worth of metal cable thefts

South Korea's Yonhap news agency reported that the corporation hoped to exploit deposits of iron ore, gold and copper in other parts of the Tanzania to help fund its project.

BBC: S Korea 'in Tanzania land deal'

For the Majorana experiment, physicists have made their own purified form of copper underground some of the purest on the planet and built an underground machine shop to make parts with the copper.

WSJ: Physicists Look for Dark Matter Underground