Example sentences of "have [been] used for many years " in BNC.
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1 | The publication of correspondence between famous people has been used for many years for the purposes of scholastic enquiry . |
2 | The ERNIE machine is a modern computerized form of sampling by ‘ random numbers ’ which has been used for many years in research . |
3 | G. affinis is a small ( 4.6 cm long ) , surface-feeding minnow which originated in the United States and has been used for many years in many parts of the world to control mosquito larvae . |
4 | Let us begin by trying to understand the rationale for the system ; after all , it has been used for many years and must presumably have had some point to it . |
5 | It has been used for many years in traveller 's diarrhoea , as a colostomy deodoriser , and as an antispirochetal agent in syphilis . |
6 | These are in addition to applications in the detergents field , in which it has been used for many years . |
7 | Our system of construction has been used for many years all over this country , by the sponsoring authorities and others , and erm we do n't have the earthquake requirements , but we do need many high value schools both quickly and on time , and we 've completed something like 2,000 projects similar to this over many years . |
8 | It is possible to break out of the straight-jacket by applying an idea that had been used for many years in thinking about the psychology of classification and aesthetics ( McLlelland & Clark , 1933 ; Berlyne , 1960 ) . |
9 | It had been used for many years as a staff hostel for an Oxford Street department store . |
10 | The experience curve itself was developed from the concept of the learning curve , which had been used for many years in industries where it was observed that labour time fell as the workforce accumulated experience in producing more of a particular type of unit . |
11 | They have been used for many years as propellants in aerosols , in the production of some foam packaging and as coolants in refrigerators . |