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

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1 This routine is designed to increase a person 's pulse rate , and then to monitor its decrease over a set period of time .
2 Roy Coyle , who watched two of his first team squad sustain fractured legs over a five-day period last week , made a bold move into the transfer market on Thursday and signed former Sunderland midfielder , Paul Lemon for an initial period of a month .
3 Performance standards could be set for the team based on a percentage reduction in those losses over a set period .
4 The proposal is to guarantee a place on ET , or any other training , education , pre-employment course , for those who have been out of work over a set period of time .
5 Field-work took place over a twelve-month period between 1987 and 1988 , and was sufficiently prolonged to avoid the criticism which brief ‘ smash-andgrab ’ ethnographies often deserve .
6 On average , a body is injected with approximately 12–16 pints of the one and a half per cent or two per cent solution and this takes place over a time period of approximately one to two hours .
7 There will be no material ownership or management relationship between the two after the spin-off , although they will continue to provide products and services to each other over a transition period .
8 The next step would be the international negotiation of a target for worldwide emissions over a set period , perhaps a decade or two .
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