Example sentences of "[pers pn] [verb] be estimated [that] this " in BNC.
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| 1 | Manufacturing accounts for a relatively small proportion of employment in rural areas , and in the more remote regions it has been estimated that this can be as low as 10–20 per cent ( Gilg 1976 ) . |
| 2 | In the case of the Earth it has been estimated that this could lead to an underabundance of xenon in the atmosphere of a factor of 10 or more . |
| 3 | It has been estimated that this particular treatment has saved about 10 million lives . |
| 4 | It has been estimated that this could reduce consumption by 20 to 30 per cent . |
| 5 | It 's been estimated that this might be of the order of one cubic kilometre per year . |