Example sentences of "least 50 year " in BNC.

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1 When the enclave returns to Chinese rule , it will do so on similar terms to those promised for Hong Kong , with Peking guaranteeing that a capitalist system and lifestyle will be maintained for at least 50 years .
2 The locally grown wheat reed is the cheaper medium and a roof constructed , whereas water reed will last for at least 50 years .
3 And they all have a life expectance of at least 50 years .
4 HOUSEWIFE Sarah Fox threw away £10,000 in research trying to invent a floating soap because such a soap called Swan , and shaped like one , was around at least 50 years ago .
5 Wenger 's data show that 43 per cent of elderly people named as a confidant someone they had known for at least 50 years , and 75 per cent named someone they had known for 30 years .
6 Mrs Hilda Still of Upper Halling served this Church for at least 50 years , taking over from her mother as Sunday School teacher , as well as playing the organ .
7 An agreement banning mining and mineral extraction in the Antarctic for at least 50 years was signed in Madrid on Oct. 4 .
8 The treaty banning mining of the Antarctic for at least 50 years has finally been signed , at a ceremony in Madrid , several months after it was originally agreed in April [ see ED no. 46 ] .
9 decomposition takes at least 50 years
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