Growing copper inventories at metals-exchange warehouses (half a million tonnes or so by some estimates) have coincided with increasing prices.

金属交易市场上不断增加的铜存货与其上升的价格保持一致。

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Of the 100 elements available to us, about three-quarters can be classified as metals. And, about half of these are of at least some industrial or commercial use.

在我们可获得的100种元素中，约四分之三可归入金属，而这其中约二分之一至少具有某种工业或商业用途。

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Allegheny Technologies, a speciality metals producer, is running its plants only half the time and furloughing its staff for the rest of the month.

特种金属生产商阿勒格尼技术公司的工厂，每月仅有一半时间开工，余下的时间内员工都被暂时解雇。

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And in the second half of this course, talk to us about transition metals in depth, and that's when we'll really delve into d orbitals.

在这个课程的后半部分，会深入的讲到，过渡金属，这时候，你们可以研究d轨道。

麻省理工公开课 - 化学原理课程节选

The mining group reported a 22% fall in first-half profit as metals prices fell and spoke of near-term uncertainty, but said it was confident about demand in the long run.

WSJ: European Stocks Rise as Markets Close

Worse, the commodities bubble burst: metals prices fell by over half between March and November 2008.

ECONOMIST: Face value

Among investors these days, a fellow commodity bull is about as rare as finding a positive story in the media, especially when you look at the results of metals and natural resources during the first half of 2012.

FORBES: Ultra Low Intrest Rates Clinch Bullish Case For Dividends, Commodities