Example sentences of "be estimated that [prep] " in BNC.
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| 1 | It can be estimated that at least twelve DNA fragments are detected by the probe . |
| 2 | The scheme has certainly helped to attract manufacturing firms , and it has been estimated that between 1957 and 1977 some 5,000 new jobs were created in 113 factories , many of which were engineering or clothing firms ( Broady 1980 ) . |
| 3 | In contrast , it has been estimated that between 0.5 and 1.1 million people are employed in private and public pollution control ( Harris , 1981 ; Kazis and Grossman , 1982 ) . |
| 4 | It has been estimated that between 1580 and 1650 London probably absorbed half the national increase of England 's population and that about one in every eight English people lived in London at some stage of their lives ; after 1650 the proportion was as high as one in six . |
| 5 | While kin are a major source of support , especially when elderly people become unable to live on their own , a considerable number of the elderly have no kin to turn to for assistance : it has been estimated that about one quarter of elderly women aged 60 in the early 1970s had no surviving children ( but the proportion will drop in years to come ) ( Timaeus , 1986 ) . |
| 6 | It has been estimated that during the last forty years of the seventeenth century between 100,000 and 150,000 people crossed the Atlantic Ocean to start a new life in America . |
| 7 | It has been estimated that for every hour of brisk walking , you can add one extra hour to the length of your life . |
| 8 | However , it has been estimated that around one in five of pensioners entitled to these benefits do not actually claim them . |
| 9 | It has been estimated that in a narrow clinical sense the Famine probably accounted for under 15 per cent of the extra mortality recorded at the height of the disaster in Saratov in 1921–2 : but in a broader sense , including deaths due to severe malnutrition and other causes , the Famine contributed to most of the rise in mortality that took place before the 1922 harvest . |
| 10 | It has been estimated that in 16 years he acquired a fortune of £40,000 , despite apparently losing a lot of money in a project for the commercial manufacture of seated cast-iron horseshoes . |
| 11 | It has been estimated that in the years 1877–1904 70 per cent of Pomeranian farmland was held in large estates and only 30 per cent in peasant smallholdings of various kinds : about two-thirds of Pomeranian farmers were smallholders living in the most appalling poverty ; their assets were non-existent or too small for them to think of trekking westwards to look for factory work ; they were too poor to pay cash for their land , and too impoverished for any bank to risk giving them a loan . |
| 12 | And it has been estimated that in Tanzania one elephant family in three are orphans . |
| 13 | It has been estimated that in the UK in 1981 about 54 per cent of married women aged 15–44 wanted no more births . |
| 14 | It has been estimated that in this way US soybean plantations leak about 30 billion cubic metres of hydrogen annually . |
| 15 | It has been estimated that in the early years of civil registration in some parts of England up to 15 per cent of births were not registered . |
| 16 | It has been estimated that in the early 1980s there were 240–300 million people involved in shifting cultivation who occupied perhaps half of the total tropical land surface . |
| 17 | Because of the projected increase in the numbers aged 85 and over , ti has been estimated that by 2000 , it will cost the NHS an additional £400 million a year , and more in later years ( Britain in 2010 , The PSI Report , 1991 ) . |
| 18 | In the US it has been estimated that by the year 2000 , three-quarters of all government transactions will be undertaken electronically ( Taking a Byte Out … 1991 , 2 ) . |
| 19 | In the UK alone , over £40 million per year is spent on tranquillizers , and it is estimated that at least 3 million people are addicted to them Some drugs affect appetite and also increase the need for vitamins and minerals . |
| 20 | It is estimated that at least 10,000 children and their parents are involved in the trauma of accidental poisonings every year . |
| 21 | It is estimated that for every pound a farmer spends on fertilizer on his fields , he can expect the rain to wash away a good fifty pence-worth . |
| 22 | It is estimated that for every cigarette you smoke you shorten your life span by five minutes . |
| 23 | It is estimated that for women to give up work to look after disabled relatives cost earnings of 8,500 if they had no children and about 7,000 if they had . |
| 24 | In the services , it is estimated that for every front-line soldier there are twenty people in support . |
| 25 | It is estimated that as a general rule these stores will accommodate about 3,500,000 sq ft of timber , or about 300,000 cub ft . |
| 26 | One in four products from the chemist will contain chemical compounds derived from rainforest plants , and it is estimated that to date only one per cent of rainforest plants have been screened for medical use . |
| 27 | In the UK where a comparatively large amount of research has been carried out into wave power it is estimated that with wave generators along the 1,450 kilometre coastline , 50% of the UK 's electricity requirements could be supplied . |
| 28 | If present trends continue , it is estimated that around 1 in 4 children will experience the divorce of their parents before they reach 16 ( Haskey , 1990 ) . |
| 29 | It is estimated that in rural areas four million people live more than five miles from a CAB . |
| 30 | It is estimated that in the years 1896–1913 German landholdings declined by over 98,000 hectares , 20,000 of which were in and around Danzig . |