Meanwhile, the shortage of capacity means that its margin of excess power has been shrinking for 20 years.

同时，产量的缺少也意味着20年来其过量能量的边际效应一直在缩小。

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Buying Power Amount of money available in a margin account to buy securities based on excess margin divided by the margin requirement.

购买力保证金账户中超过利差要求，可以买入证券的那部分超额保证金。

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Margin businesses more focused on information technology, power and other industries.

毛利率业务的更多信息技术，电力等行业的重点。

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That would widen their margin of power before returns begin to roll in from the West, where Democrats hope to pick up as many as four seats in California, at least one and maybe two in Washington and one each in Utah and Montana.

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In fact, the only thing they'd probably have to worry about would be the low-margin mini really cannibalizing thes sales of their non-Intel, non-DVR higher-margin iMac and Power Mac products (at least for the time being).

ENGADGET: The new Mac mini -- with Front Row 2.0 and DVR?

Power also thinks gross margin concerns are going to remain an issue.

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