Example sentences of "only a few [noun] per [noun sg] " in BNC.

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1 The DCS200 uses rechargeables , which will last only a few hours per charge .
2 At source , a basalt lava may be moving at twenty or more kilometres an hour ; at the far end it may be oozing forward like treacle at only a few metres per hour ; so the temperature of a magma will obviously affect the style of an eruption considerably .
3 This movement , perhaps only a few metres per hour , continues until the supply dies away at source , and the nose of the flow gradually slows down and stops , still and silent .
4 The bipolar outflow model does however raise the question of how molecules can survive in a strong shock in a medium with the extremely high velocity of 1,000km s -1 ( for comparison , the sound velocity in interstellar space is only a few kilometres per second ) .
5 Mr. Frisby believes companies often pay little attention to the contract , thinking it involves only a few pence per copy .
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