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

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1 With brightness masking , subjects report that although the target appeared to be present for a reasonably long period it was too vaguely defined — its contrast was too low for it to be identifiable .
2 Shoulthwaite Ghyll remained in a very good condition for a surprisingly long period .
3 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 .
4 It should be borne in mind here that many trustees would be able to appoint the capital to relatively young beneficiaries so that the property might not be subject to a further charge for a relatively long period .
5 If subject to stress for a sufficiently long period of time all ‘ solid ’ materials are capable of flow .
6 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 .
7 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 .
8 Enterprise zone property trusts are established to be held as an investment for a very long period ( usually 25 years ) and as Capital Ventures warns : ‘ You may have difficulty in selling your investment before realisation of the underlying property … ’
9 It is then not surprising that for a very long period the most difficult problems in the social relations of cultural practice revolved around the question of literacy .
10 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 .
11 Because you are agreeing to ‘ tie up ’ your savings for a comparatively long period , we offer an attractive rate of interest guaranteed throughout the term of the Bond .
12 Clearly this is consistent both with a period of about a day and with a very long period .
13 It has proved extremely difficult , too , to find significant changes in attitudes in many markets except over a rather long period — which does not disprove the theory , but suggests either that advertising does not work very fast , which no one wishes to admit , or that attitudes are not the whole of the story .
14 When you spread work like this over a very long period you are able to look into yourself , and see yourself in a great work of art .
15 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 .
16 Investigations into the activities of this particular gang had been carried out over a very long period and they had been kept under constant surveillance by our officers who were thus able to feed us all the necessary information towards a successful interception .
17 Fussler and Simon , in Patterns in the use of books in large research libraries , affirmed that ‘ past use over a sufficiently long period is an excellent and by far the best predictor of future use ’ , although they observed , ‘ the confidence limits of prediction vary significantly from one subject to another ’ .
18 Incidentally , Dubhe and Alkaid are moving across the sky in a direction opposite to that of the remaining five stars , so that over a sufficiently long period the Plough will lose its familiar shape .
19 The corrosion emanated from the joint between the bottom of the pressure dome and the fuselage and there was nicotine tar staining on the edge of the corroded area indicating that it had developed over a relatively long period .
20 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 .
21 Moreover , a secretary attached to a legation or an embassy and not to an individual minister or ambassador , and remaining at his post over a fairly long period , could become a valuable source of information about local conditions : this might be of great help to a new head of mission coming to a strange country of which he knew little .
22 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 .
23 There were several motives which might bring a man to commit himself to a fairly long period ( eight years in France from 1762 onwards ) of military service .
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