Example sentences of "[vb pp] for long period [prep] " in BNC.

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1 In towns and cities which are occupied for long periods of time , there is a continuous process of old buildings being demolished and levelled for the construction of new ones , which in turn become old and are demolished .
2 Depending on the nature of the defect , electrons may remain trapped for long periods of time ; such a trap would be referred to as ‘ deep ’ .
3 What we are saying there are other emergencies and I get down to the word loneliness now is there any reason why senior citizens should n't have the facility whereby they can make telephone calls if those , they so desire , to members of the family who in many instances they have n't seen for long periods of time ?
4 Unlike conventional spring-loaded shears , which are heavy to use , and which work through a linkage which becomes worn with use , the Master and Multi Shears are lightweight , and can be operated for long periods without hand strain , even by people with limited hand strength .
5 Creams or ointments containing steroids often help reduce the inflammation and itching in the skin but should n't be used for long periods of time .
6 In this research , palynology was dominant for many years but subsequently enormous potential has been offered by research developed by F. Oldfield on mineral magnetic properties which are valuable because many magnetic properties are environmentally diagnostic , are preserved for long periods in many situations , and have parameters which are easy to measure .
7 Isolated for long periods amongst little-known peoples , our sole defence lay in a sort of encounter therapy , a complete vulnerability to our hosts ' ways of being and seeing .
8 It was a more profound unpredictability , in spite of the fact that probably a good proportion of workers were employed for long periods of their lives by a single employer .
9 It has been alleged by the director of a management investigation company that telephones in Transport House , then the headquarters of the Labour Party and still the headquarters of the TGWU , were tapped for long periods during 1972 , a time of union opposition to the Industrial Relations Act 1971 .
10 To meet this need , high-power video lights have been developed from earlier photographic types which are capable of being run for long periods at full power .
11 A report issued on Feb. 9 by the New York-based organization Lawyers Committed for Human Rights said that inside Myanma thousands remained detained for long periods under poor conditions , with some prisoners being tortured .
12 The other 20 men and 10 women started antihypertensive medication at mean ages of 35.5 and 40.8 years respectively ; many patients were observed for long periods before starting medication , especially in the early 1970s .
13 As the products of such events could be stored for long periods in the thick sub-cratonic lithospheric keel , there is ample scope for ancient relict-enriched mantle to be involved in younger igneous events .
14 The campaign was fought for long periods with all the strategic sense of an exhausted boxer launching haymakers from the ropes .
15 To investigate our rhythms , some individuals have lived for long periods in underground caves , cut off from sunlight .
16 and they 're just jailed for long periods of time , because he wants to assert , Saddam wants to assert , er his authority and show how erm , tough he is .
17 If a search for money and/or an avoidance of stress are two indicators of strong arousals from this goal category , then it is clear that some people can be motivated for long periods of time either by stress avoidance or by accumulating more and more money .
18 AGR fuel is clad in stainless steel , which corrodes and so can not be kept for long periods under water .
19 All were controlled for long periods with endoscopic treatment altough it is possible that obstruction contributed to death in one patient .
20 In the 1970s he was detained without charge or trial for five years and tortured and held for long periods in leg-irons .
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