Example sentences of "period [prep] [adj] year [pers pn] " in BNC.
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| 1 | ‘ Over a period of one year we were continually evaluating our frac pack job performance , changing one component at a time until we achieved well performance that has virtually eliminated problems caused by damage near the well bore , ’ Park says . |
| 2 | Over a period of many years I had a succession of research students working On the Eocene strata of the Isle of Wight , off the south coast of England . |
| 3 | Over a period of nine years it has become clear that the breeders referred to in the cup of that name do not include those operating on this side of the pond . |
| 4 | While this study is limited to one university and deals with a relatively small intake of mature students over a period of six years it does demonstrate that non-standard entry mature students can do particularly well when compared with other students . |
| 5 | Over a period of fifteen years he noted that not only were the ridge and furrow patterns of each individual 's prints unique , but that they never changed . |
| 6 | Barnard inherited a large fortune from his father : over a period of fifty years he devoted himself to the formation of a collection of prints , drawings , and paintings , becoming one of the foremost connoisseurs of his day . |
| 7 | But levied over a period of three years it brought in about £80,000 and became the prototype for later subsidies . |
| 8 | The government announced on Nov. 26 that over a period of three years it intended to cut 122,000 government jobs — approximately one fifth of state employees — at an estimated saving to the state of the equivalent of US$1,500 million . |
| 9 | In a period of ten years he recorded at least thirty proven cases of clairvoyance between himself , or his wife , and a horse . |
| 10 | Over a period of twenty years it is claimed that a fast reactor could breed enough additional plutonium to fuel another similar power station . |
| 11 | According to bogus sexologist Dr John R Brinkley , goat glands held the secret to combating male impotence and over a period of twenty years he amassed a fortune of more than $12 million administering them to 16,000 men worried about their sexual inadequacies . |