Example sentences of "[noun pl] over a long period of " in BNC.

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1 In these respects , there has been a general and continuing decline in prison conditions over a long period of time ( King and McDermott , 1999 ) .
2 My own efforts over a long period of time , plus correspondence and telephone calls to various bodies have met with no success .
3 My own efforts over a long period of time , plus correspondence and telephone calls to various bodies have met with no success .
4 The best businesses over a long period of time have been the ones with a single thrust .
5 This may apply to a particular period or it may be concerned with changes over a long period of time .
6 Simulation has been used to predict population changes over a long period of time and for charting space-satellite trajectories .
7 The problem of consistency of measurement techniques over a long period of time will have to be faced and may not have a satisfactory solution .
8 Staggered working hours would spread travelling times over a longer period of the day and in many cases allow more efficient use of factories , offices , schools and the equipment therein .
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