Example sentences of "known [prep] [be] present " in BNC.
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| 1 | One kind of nucleic acid , DNA or deoxyribosenucleic acid , was known to be present in chromosomes , and hardly anywhere else . |
| 2 | They may be at risk because of identifiable genetic disorders which are known to be present , or because of the age of the mother . |
| 3 | The chemical structures of isoniazid and Marsilid were , somewhat distantly , related to that of several of the amines known to be present in living tissues . |
| 4 | When known to be present , iron and manganese can be easily removed from water , and there are several processes that are used for this purpose . |
| 5 | They were known to be present in all good mines — indeed their absence was not a good omen . |
| 6 | The original duty owed was the basic one of not intentionally or recklessly injuring a trespasser known to be present ( Addie v Dumbreck Collieries [ 1929 ] AC 358 ) . |
| 7 | The occupier owed a duty of common humanity to a trespasser known to be present . |