Example sentences of "[prep] about [num] [noun] [adj] to " in BNC.

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1 National insurance did not actually become a comprehensive scheme for about 20 years due to popular suspicions and lack of funds .
2 As far as Kuwait is concerned we 'd like to see our country free again and this gives us the type of hope we have been wanting for the past six months , and I am sure for the people inside Kuwait — because I was there for about three weeks prior to the after the invasion I was there and I had to escape that country .
3 These larvae are derived mainly from eggs passed in the faeces of ewes during the periparturient period , from about two weeks prior to lambing until six weeks post-lambing ( Fig. 13 ) .
4 An isobaric temperature difference of about 300°C has been estimated across the width of the aureole , with a maximum temperature of about 650°C at about 3 kilobars adjacent to the contact of the granodiorite intrusion .
5 In the pregnant bitch , prenatal infection occurs , larvae becoming mobilised at about three weeks prior to parturition and migrating to the lungs of the foetus where they moult to L3 just before birth .
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