Example sentences of "over a [adj] time period " in BNC.
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1 | The second would be at the City Airport , where BA might offer attractive low fares , sustainable over a long time period by cross-funding from their worldwide profitable operation . |
2 | Some measurements were made using older plants over a short time period , just three hours . |
3 | It is such measurable levels of activity over a given time period however which provide a means of support and comparison . |
4 | Since , in equilibrium , the aggregate demand for goods and services will be equal to the rate of national income ( which measures the total value of goods and services produced in the economy over a given time period ) , we can expect a direct relationship between the aggregate demand for labour and the rate of national income . |
5 | The supply of labour can be defined as the quantity of labour services ( measured in person-hours ) offered for hire by individuals over a given time period . |