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

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1 And I believe er , at this meeting it was revealed that Scottish Homes had received a tender from the West Lothian District Council for this work over a period of ten years for a figure which comes to four hundred thousand pound which , apparently , was the cheapest tender !
2 Captive-bred Pretty Tetras , have a much more brighter colouration than wild-caught specimens , the latter of which tend to lose this brightness over a period of time when kept in an aquarium .
3 This 11-year series combined with earlier observations of the pulsar gives us a fairly complete account of the rotational behaviour of this pulsar over a period of 23 years , including the glitches of 1969 , 1975 and 1986 ( refs 4–6 ) .
4 We have recently shown that significant portal and systemic endotoxaemia occurs in this model over a period of three weeks .
5 The results of these labours over a period of fifty years were many papers and five influential books , the last two of which were completed by his son .
6 And it maybe about a relationship that will build up with these people over a period of time and I know it 's expensive as negotiation .
7 Thus , while Piaget emphasised the importance of the child 's actions upon the world , other researchers have focused upon the child 's reactions to other people and the interactions which occur when adult and infant act and react towards each other over a period of time .
8 It happened many times over a period of weeks and , between the … visitations … there were moments when she doubted her own sanity .
9 It is generally agreed that students/trainees are observed performing on many occasions over a period of time as a natural part of the learning process .
10 Some will remain lone parents , some may have one or more cohabitees over a period of years ; many will remarry after a period of cohabitation and become a step-family .
11 He must have a computerised brain to have absorbed all that information over a period of years without having compiled a ‘ silly tick list ’ himself .
12 The same effect can be obtained by filling the pool with water and emptying it several times over a period of two or three weeks .
13 There is no obligation to buy any books over a period of time .
14 Stoats , weasels and polecats were the more obvious of these and man , being the innovator that he is , may well have captured , tamed and adapted some of these animals for his own purposes over a period of centuries .
15 If it is practicable to make repeated visits to the same site over a period of months or years a programme of capture/mark/release and recapture will add a further dimension to the whole range of topics available .
16 relationship , I mean do set up , I mean , if you get into , if you establish relations with me then it 's an ongoing thing , it can be , and it ought to be , so you actually do see the same people over a period of time , and you do establish a modicum of trust , not entire trust , because it 's asking too much for entire trust in all circumstances , but at least there is a certain understanding , particularly with the , on the , on the local basis .
17 Minns brought a broad range of expertise to bear on a field extending from eastern Europe to China , while at the same time paying close attention to the antiquities and books of his own college , where he occupied the same rooms over a period of fifty-five years as undergraduate , fellow , president ( 1928–49 ) , and senior fellow .
18 Cameron first worked for Catherine at the palace of Tsarskoe Selo , to which he made several additions over a period of fifteen years , notably the Agate Pavilion and the Cameron Gallery , an elegant building based on the neo-classical style developed in England by Robert Adam , about which Cameron had probably learned from Clérisseau .
19 Then work out a way that you can attain that goal over a period of time .
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