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

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31 According to government estimates , the Soufriere geothermal project could potentially provide electricity for around a quarter of the island 's population and saved about US$250 million in foreign exchange over a 30-year period .
32 In South-west England tin , copper and other metals have been mined for at least 2000 years from deposits related to Variscan granites ; in the Pennine range of central and northern England over a similar period , lead , and lately fluorite and baryte , have been extracted from vein and replacement deposits in Carboniferous sediments ; in Central Wales , the Isle of Man and the Southern Uplands of Scotland lead and zinc have been mined from vein deposits in Lower Palaeozoic greywackes and in the Lake District copper , lead and zinc have been recovered from a variety of deposits in Lower Palaeozoic sedimentary and volcanic rocks underlain by Caledonian granites .
33 Common sense as well as medical evidence tells us , however , that excessive drinking over a long period of time can lead to health problems — and that drinking vast quantities in a short space of time is both foolish and dangerous .
34 It covered the demobilization , repatriation or relocation of the contras over a 90-day period beginning on Sept. 8 ( i.e. by Dec. 5 ) .
35 He says on a 500-acre farm the cost of an innocent error in completing the complicated forms might be a loss of more than £100,000 over a two-year period and assured bankruptcy for the farmer concerned .
36 Records may have to be kept for reference over a long period of time and therefore they must be adequately protected .
37 Some families require extensive help over a prolonged period to overcome long-standing emotional problems in the family which have culminated in a child who is failing to thrive or is obese .
38 A quick glance at the seven-layer decision-making ladder of the OSI , makes plain the potential for querulous technical in-fighting over a near-interminable period .
39 The good thing about the airlift was that pilots had clear visibility all the way into Tabubil — a rare happening in an area where rain is often measured in feet over a 24-hour period .
40 Now er I have to warn him there are that sort of conduct has been indulged in to the detriment of the people of Highfields over a significant period by the Labour party .
41 Other types of skin cancer are associated with continued exposure to the sun over a long period .
42 The compromise plan involved a phased US withdrawal over a three-year period , the modalities of which were to be worked out by a special panel which would be chaired by the chief presidential aide , Franklin Drilon .
43 The two main sets of circumstances to which the Act is normally applied relate first to mental disorder and secondly to self-neglect over a long period .
44 He claimed that 85,000 people had used the range over a two-year period and that outdoor sport was acceptable on green belt land .
45 Permanent income can be thought of as the present value of the expected flow of income from the existing stock of both ‘ human ’ and ‘ non-human ’ wealth over a long period of time .
46 Recall from Chapter 19 that this is a long-run measure of income which can be thought of as the present value of the expected flow of income from the stock of human and non-human wealth over a long period of time .
47 Sales representative organized the promotion and personally demonstrated the production of chapattis to thousands of visitors over a five-day period .
48 Many of the most popular plants in gardens today fist arrived with the flood of introductions which filled our nurseries and gardens over a fifty-year period .
49 The father , Mr P , also an English incomer to Orkney , had carried out various forms of abuse over a long period of time .
50 Therefore , between 2 and 4 hours will be needed for shift overlap purposes over a 24-hour period .
51 Talks on the possible sale of Iraqi oil worth US$1,600 million for humanitarian purposes over a six-month period [ see pp. 38406 ; 38452 ; 38548 ] were held in Vienna between Iraqi and UN officials on Jan. 8-10 .
52 In February the USA and the Soviet Union reached a preliminary agreement to phase out chemical weapons over a 10-year period [ see p. 37267 ] .
53 The contract consisted of a set of mutual commitments tied to precise targets over a three-year period .
54 The majority of the work shown was very recent , but several of the pieces date back as much as 10 years revealing her fascination with the themes from classical mythology over a long period .
55 On the other hand , if it is impossible to find any evidence of the congruence between government growth and the requirements of capitalism over a certain period .
56 The explanation is that , given a totally unvarying diet over a long period of time , especially if it is from kittenhood right through into adult life , a cat 's ‘ food variety mechanism ’ gets worn down and is finally switched off altogether .
57 It is possible to enter into a guaranteed revenue agreement with the water authority whereby the income from the water charge over a 12-year period is offset against the capital cost and the developer is only liable for any shortfall on an annual basis .
58 This is bond paying a regular ( usually semi-annual ) , fixed coupon over a fixed period to maturity or redemption , with the return of principal ( i.e. the par or nominal value of the bond ) on the maturity date .
59 Poor timekeeping over a long period usually amounts to misconduct .
60 To know that there 's someone going to buy your crop over a long period of time , or part of your crop , ideally , over a long period of time , does help people to plan ahead .
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