Example sentences of "[verb] over long period " in BNC.

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1 Doctors claim their major concern over boxing is the brain damage suffered over long periods .
2 It partly corresponds to the asthenosphere , the plastic-like properties of which permits slow ‘ flow ’ of material in response to forces applied over long periods of time ( Fig. 2.7 ) .
3 The boilers to raise the necessary steam were of ‘ Lancashire ’ type , the characteristics of which enable a small amount of steam to be supplied over long periods with a minimum of attention , which was the type of duty envisaged for this plant .
4 Ideals have always been developed over long periods of time as the result of historical evolutions and through exceptional personalities .
5 These low potencies were often given over long periods , and frequently mixtures of different remedies were used .
6 However , when observed over long periods , many species are found to be generalist in that individuals of them are capable of taking advantage of ‘ specialist ’ interactions at any one time : the ‘ anachronisms ’ show this , as do the generalized pollinators on islands where plants have ‘ left their pollinators behind ’ , e.g. a cetoniid beetle , Mauseolopsis aldabrensis , visits 58% of all flowering species , native or introduced , of all colours and morphology , on the coral atoll of Aldabra off the African coast , but it shows a remarkably high degree of constancy in its foraging flights .
7 The vast majority of these fish I have kept over long periods and know to be reliable , easy to keep and in the case of some , very long lived .
8 This situation is different from the condition in which the present studies were performed and in which pressures were recorded over long periods , with the patient not being asked to take swallows .
9 Hypermedia systems are very complex : events have to be controlled over long periods , as in the design , control , maintenance and integrity of linear and branching trails used for navigation ; text and graphical information comprises complex data objects with the need for aggregation and inheritance abstractions ; and interfaces must employ multi-windowing techniques and be natural according to psychological models .
10 These goals reflect the backgrounds ( values , beliefs and experiences ) of individuals and do not emerge fully formed at 20 years of age ; they are acquired over long periods , and particularly during childhood .
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