Example sentences of "these have [adv] been [verb] by " in BNC.

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1 For example , they have found that " there is considerable evidence that attitudes to comfort are important in estimating the user 's contribution to conservation … yet these have rarely been explored by research on the effects of feedback " .
2 Previously these have not been felt by the mother but now they manifest themselves as mild pain or discomfort .
3 These have both been replaced by plastic : polypropylene , which uses push-fit connections , and ABS ( acrylonitrile butadiene styrene ) , which is joined by solvent welding .
4 Simple mixers can in fact be made up cheaply by enthusiasts from published circuits , but these have largely been supplanted by modestly priced commercial units which incorporate battery or mains-fed circuitry capable of delivering better balanced outputs of higher quality .
5 The United Kingdom Government has shared the Committee 's reservations as to the excessive use of Article 118A , and these have also been supported by other Member States in the Council .
6 These have understandably been strained by the collapse of BZW 's profits to £5m last year , as well as by the £110m the bank had to pay last November to buy out most of the 200 former partners who together owned a fifth of the investment firm .
7 Charles Dollar of the National Archives and Records Administration ( NARA ) ( USA ) wrote some early studies ( e.g. 1971 ) and these have now been followed by numerous articles in Archivaria , American Archivist , the publication of special reports , and the summaries of meetings ( e.g. Research Issues … 1991 ) .
8 These have now been replaced by the 4.1m deep Woodnook Lock which lets the navigation rejoin the River Calder above the railway viaduct rather than below it .
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