Example sentences of "[prep] [adj] hours be [adj] " in BNC.

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1 A normal haematocrit after 24 hours was present in all subjects and indicated either sufficient oral liquid intake or insignificant fluid loss .
2 Under the 1924 Regulations , university extension courses which aggregated tuition over a minimum of eighteen hours were eligible for grant-aid and were somewhat similar to WEA Terminal courses .
3 The enormous increase in broadcast hours is easy enough to observe .
4 The observation that the period of the sleep/wake rhythm differs from 24 hours is important because it indicates that environmental cues can not have been responsible .
5 Emergency Admission ( section 4 ) for up to seventy-two hours is possible on the application of the nearest relative or an approved social worker who must have seen the patient personally within the previous twenty-four hours , but it requires only one medical recommendation .
6 This second finding was confirmed by Shargill et al although total consumption at 24 hours was unchanged with an intraperitoneal dose of 19.6 µg .
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