Example sentences of "[n mass] over a [adj] [noun] [prep] " in BNC.

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1 The Commission approved on Dec. 17 , 1989 , for the third framework programme , its key technology research and development initiative , a budget of 5,700 million ECU over a five-year period of which one-third was to be for research into information technology .
2 A stability test involves the accumulation of a substantial amount of data over a prolonged period of time and may require the production of reports at several stages of the test .
3 The accumulation of data over a long period of time is a situation that lends itself well to the use of a microcomputer .
4 As M. W. Eysenck ( 1982 ) points out , unless studies collect data over a large range of different arousal levels , there are relatively few patterns of results which are actually inconsistent with an inverted-U relationship .
5 When the first giraffes began to stretch their necks to reach the leaves of trees , they were choosing a new habit that would guide the future development of their species over a vast period of time .
6 This restriction to particular ‘ niches ’ in the environment is the result of a partitioning out of competing species over a limited range of resources ; each comes to live in the portion of a habitat it can exploit best for reproductive purposes .
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