Example sentences of "[prep] [art] first 20 year " in BNC.
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1 | The power available from the hydroelectric station will be at least 800 MW , eight hours a day for the first 20 years , thereafter falling by about 30 per cent . |
2 | After 1839 the number of staff gradually increased but for the first 20 years the work was confined to southern Britain , limited by the availability of Ordnance Survey maps . |
3 | The imaginary war , at least for the first 20 years after the war , reproduced the solutions of the second world war . |
4 | In the deDombal study , all strictures were benign , but in 92% of patients ( 48 of 52 ) they had occurred within the first 20 years of disease ; the lack of malignancy among their strictures was therefore attributable to the fact that most of their patients had disease of short duration . |
5 | In the first 20 years of the Survey 's activities in Scotland , practically all of the central and southern parts of the country had been surveyed on the 6-inch scale and manuscript copies of the field maps made for public reference . |
6 | The rate of progress made in the first 20 years was only achieved by the geologists being in the field most of the year . |