Example sentences of "[vb pp] over a long period [prep] " in BNC.

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1 For a start , it allows spreading to be carried over a longer period during the winter months ( Table 1 ) .
2 In early 1977 , for the first time in 30 years , campesinos in the central region of the country occupied land from which they had been evicted over a long period of time to make way for export crops .
3 Signatories of GATT could institute tariff changes which might discriminate against third parties only if done over a long period of time , so giving those third parties the opportunities of adjusting to the change without suffering severe economic disruption .
4 In this type of study , trend values of consumption and income are collected over a long period of time so that most cyclical fluctuations are smoothed out .
5 Figure 18.4 shows , by means of five-year moving averages of deaths per million in England and Wales , how the disease has behaved over a long period in relation to other serious illnesses .
6 Also the junction between the uncorroded metal and the applied patina is very sharp , whereas a patina which has developed over a long period of time will have eaten into the metal in a very irregular and quite characteristic manner that is very difficult to imitate .
7 Also , employers are constantly employing new staff so the return on selection has to be calculated over a longer period of time to get a true picture of the effects of selection methods .
8 An additional incentive is that a garden , in contrast to its associated historic building , does not always need substantial sums for major fabric repairs at the outset and can be revived over a longer period of time .
9 Complex adaptations have developed because in certain circumstances the same selection pressure has been maintained over a long period of time .
10 Besides , the variations in the pattern and emphasis of such courses seem to have grown up largely pragmatically , as a function of the organizational ‘ discretion ’ that both institutions and academics have in responding to the needs , pressures and priorities they have perceived over a long period of time .
11 But what I am saying in context , no this has a deal to do with the co boundaries , as you know erm the honourable member well knows , the essence of this this is wholly inappropriate in terms of erm trying to latest citizenship through an arrangement of six additional boundaries into a erm union and a political state and I think that that is the profound objection that this side of the house has expressed over a long period of time now , is a reflection of the public mood in the country in respect of this election and the way the boundaries er are are erm apportioned and all I say in conclusion is that this is an evidence further of the irrelevance of this house in reflecting and attesting to public opinion outside .
12 Your own , personalized weight control programme has not been a sudden thing but has evolved over a long period of time .
13 What was less obvious was the effect on the system as a whole , which had evolved over a long period of time influenced by a variety of political and economical pressures , and not necessarily in a methodical manner .
14 If we find that magnets attached to cats will upset their ability to find their way home , then we are beginning , very dimly , to understand the amazing homing abilities that the animals have evolved over a long period of time .
15 Such factors may include , for instance , a previous experience of loss which was dealt with badly , unresolved grief , past experience of failure , a lack of a sense of self-efficacy , a low self-esteem , a previous history of psychiatric disorder , and an absence of close relationships established over a long period of time .
16 All your behaviour , with the exception of those reflexes that were built into the system , has been acquired over a long period of ad hoc learning .
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