Example sentences of "and [noun] [prep] a [adj] period " in BNC.

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1 The ecological significance of these precipitation figures in terms of soil moisture may be judged by relating them to the amount of moisture lost through evaporation and transpiration over a given period .
2 In the decade 's final timetable , there is an express every 15 minutes ( plus one extra ) between Swindon and Paddington over a two-and-a-half-hour period in the morning rush .
3 Many of the most popular plants in gardens today fist arrived with the flood of introductions which filled our nurseries and gardens over a fifty-year period .
4 He thus witnessed the birth of Saudi Arabia and could observe its growth and development at a crucial period in its history .
5 He flew from London to Sweden at the beginning of December , and at the ceremony on 10 December he was described as " a leader and champion of a new period in the long history of the world 's poetry " .
6 There are also a number of cases where the Commission has held that the banning of meetings and procession for a restricted period because of fears for public safety , such bans being under the democratic laws of a State , were not in contravention of the Convention .
7 Homosexuality between consenting adults aged 21 or over , and abortion during a certain period of pregnancy , are not criminal offences at present , although they have been in the past .
8 By the terms of the agreement Australia would have prospecting rights for oil and gas for a 40-year period over 23,550 square miles of seabed .
9 According to the original plan , around 30 tons of plutonium " needed to supply the domestic nuclear-energy programme " would be shipped from reprocessing plants in France and Britain over a 20-year period .
10 In my experience most people who suffer a myocardial infarct have been under pressure with associated exhaustion and fatigue for a prolonged period .
11 National expenditure is the actual amount of money spent on goods and services over a given period of time , whereas aggregate demand is the total value that households , firms , the government and foreigners plan to spend out of their respective incomes over that time period : in other words , it is the total amount they are willing and able to spend .
12 It is checked and passed to the Registry who , together with the data preparation service , enter and verify approximately 10,000 individual marks and grades within a 36-hour period each term .
13 The analogy with Munros and their associated Tops is obvious , and to collect either is likely to involve above average commitment and dedication over a sustained period of years , and require a broad spectrum of mountaineering skills .
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