Example sentences of "[noun] prevailing at [adj] time " in BNC.

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1 Thus , any attempt to analyse the former land use around a settlement needs to take into account more than just the present physical nature of the land : changes may have taken place in any period under the influence of the technical abilities , and social and economic conditions prevailing at any time .
2 The actual payment or receipt of the option premium is effected when the position is closed , at the rate prevailing at that time , with the difference between that and the option price at the outset having been made up by payments of variation margin .
3 The Government 's demographers advised that the largest regular army that could be recruited and sustained , under the conditions of full employment prevailing at that time , would be in the order of 165,000 , excluding the 14,600 Gurkhas and other locally recruited forces .
4 They are thought to have formed by partial melting of subducted oceanic crust — a process that would have been much more widespread early in Earth history than at present , owing to the higher thermal gradients prevailing at that time .
5 3rd March 1962 was a sad day which was not helped by the depressing weather prevailing at that time .
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