Though the output is minute, such a power source could carry on generating electricity unassisted for a long time.

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Now, as we all know from our personal experience and from our HDTV defined feature a few weeks back, for a set to carry an HDTV label, it must output a minimum resolution of 720p.

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Certainly, social protection does carry economic costs, reducing the amount of output that can be squeezed from any given amount of capital, labour and other resources.

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But, as in much of his output, his personality and willingness to have fun in a genre reputed for serious posturing will carry yet another Snoop album into the popular consciousness.

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It is likely to carry on rising, even if it falls short of the 3m that looked likely in early 2009 when output was plummeting.

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