Example sentences of "[num] [prep] [num] of [noun] per " in BNC.

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1 The most obvious result of the evolving technology is increased speed , from a few thousand instructions per second to several millions or tens of millions of instructions per second .
2 So , if you were to create tens of thousands of ready-mades per year , that would become extremely monotonous and irritating .
3 They would have a radius of only ten miles or so and a density of hundreds of millions of tons per cubic inch .
4 If this structure seems fairly simple , it must be remembered that each of these materials is made on a massive scale — often hundreds of thousands of tonnes per year .
5 Each one of those pulses has a carrier frequency of tens of thousands to hundreds of thousands of cycles per second .
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