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

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1 Most funding agencies are , understandably , unwilling to take on a commitment to pay for research over a period of perhaps twenty years or more .
2 If you mark your weight on a graph or chart this should provide a clear and rewarding sign of progress over a period of weeks and months .
3 I have experience of this class of case over a period of more than fifty years and it has n't been uncommon in the past even in the days when judges took a more rigorous view than they cline er inclined to do nowadays not to punish er in any with a custodial
4 Chairman can I er suggest to these results of course over a period and I 'd like to see
5 They have an album of photos showing the house at different stages of completion over a period of 18 months .
6 Those who tend to see the eighteenth century as above all " the Age of Wesley " usually bring a good deal of retrospectivity to their view of the rise of Methodism over a period at the end of which Methodists were still not especially numerous in the nation as a whole .
7 The group says that the survival of evidence over a period of years defies expectations and improves the prospects for enforcement of the recently signed international Chemical Weapons Convention ( see Nature 361 , 105 ; 1993 ) .
8 Typology is the study of the development of particular types of artefact over a period of time .
9 There are also some local variations in the measurements and because of this reliable detection of growth over a period of half a day seems unlikely .
10 A valuable feature of our case is that it provides a detailed profile of the natural history of EATCL over a period of 12 months from initial presentation to the introduction of chemotherapy .
11 The appellants considered the mortgage could not be redeemed without their consent unless in accordance with the covenant for repayment over a period of 21 years .
12 Both the statement and financial figures are expected to relate to a plan for development over a period of 3–4 years .
13 However in practice deterioration of stock inevitably sets in , through a variety of factors : original errors or omissions in selection ( for the reasons suggested above ) ; poor control of withdrawals and replacements ; fluctuations in funding over a period of years ; fluctuations in demand caused by changes in the constituency , or changes in their needs .
14 As it happens , there is a substantial engine refurbishment contract in the offing which ( although tenders have not yet been invited ) promises to bring someone several tens of millions of pounds in revenue over a period of a few years .
15 This gives judicial support to the view that financial statements have a limited useful life ( of less than 15 months ) and depreciate in usefulness over a period of time .
16 In LEAs where a scheme of delegation has been in place over a period of years , the question of making more money soon arises .
17 High rate of growth The rate of growth is a measure of the increase in output over a period of time .
18 The fry are born with large black eyes , but these steadily reduce in size over a period of weeks until they are covered with a cartilaginous sheath .
19 Infection by lymphocystis first appears as ‘ Cauliflower ’ -like growths which gradually increase in size over a period of several weeks or months .
20 One solution to the difficulty of what the Cockcroft Report refers to as " recording positive achievement " which attempts to avoid laying too much stress on what pupils have not achieved is to record the growth in attainment over a period of time .
21 Engineers of this discipline are in the greatest demand , and receive the highest salaries at an early age , Imagine also that the raw material used by these engineers has been rapidly increasing in abundance and dramatically decreasing in cost over a period of 20 years .
22 Change in landscape over a period T = t 2 - t 1 can be measured either by integration of fluxes or by net displacement of a system parameter ( ) .
23 A number of working groups have been set up by the Council to look at these matters , but the truth is that the whole curriculum approach is rendered horrendously difficult by the subject structure and by the inevitable fact that the various subject working party reports are coming on stream over a period of at least four to five years .
24 The Library Association has thus taken a consistent position on censorship over a period of at least 25 years .
25 Thus he favoured co-operation with other major industrial states in the hope that sterling might be restored to health over a period of three or four years .
26 Seismic data were returned to Earth over a period of a few years from these five stations , though they were reduced to four when the Apollo 11 station stopped working .
27 The work is to be done at home over a period of about nine months .
28 When m = n , all integrals on the right-hand side of equation ( 11.3 ) are zero except that in which the integrand is , and since it follows that for to Multiplication of equation ( 11.1 ) by followed by integration over a period T similarly gives When , all integrals on the right-hand side are zero except that in which the integrand is .
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