Example sentences of "[prep] a [adv] long period [prep] " in BNC.

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1 After an immensely long period of feeble luminosity , the star loses the last of its light and heat , and becomes a cold , dead Black Dwarf .
2 However , the considerations given earlier on overflow area size and the need to allow for a relatively long period between reorganizations will guide the designer to a reasonable compromise .
3 If subject to stress for a sufficiently long period of time all ‘ solid ’ materials are capable of flow .
4 However , if gains are kept offshore for a sufficiently long period of time , the return on investment may exceed the increased capital gains tax liability .
5 On the other hand all modern anthropologists and archaeologists would agree with the view that for a very long period of history mankind has existed solely by hunting , fishing , and gathering , and that such a technological stage always precedes domestication of plants and animals .
6 One possibility would be a statutory reformulation of Rylands v. Fletcher shorn of the qualifications and defences which so emasculate it now , perhaps on the lines of the Restatement , which imposes strict liability on one who carries on an ‘ abnormally dangerous activity , ’ but this would be open to varying judicial inclinations and would give rise to considerable uncertainty for a very long period of time .
7 The fact that it is very difficult to do does n't prevent a lot of people wishing to achieve it , but it is very seldom that , in the industrial world , anybody has achieved and held continuously a pre-eminent position over a very long period of time .
8 This was particularly the case with patients who had been given methadone reduction over a relatively long period of time , say two to three months .
9 What we try to do is to make available to people opportunities for study in depth and over a fairly long period of time , on issues and in subjects which are part of University activity .
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