Example sentences of "[am/are] used for this [noun] " in BNC.

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1 Complex polyphosphates are used for this purpose such as sodium tripolyphosphate or tetrasodium pyrophosphate .
2 Coyote and fox scat concentrations are used for this purpose , and it is quite common to find mustelid scats from weasels or martens deposited along walls or roads which mark the edge of individual ranges ( Lockie , 1966 ; MacDonald , 1979 ) .
3 Two arguments are used for this purpose .
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 Some of the retirement relief concepts are used for this relief .
6 It is easy to see why it is the more unusual types of artefact that are used for this type of research .
7 A sign in a Zurich hotel says : ‘ Because of the impropriety of entertaining guests of the opposite sex in the bedroom , it is suggested that the lobby be used for this purpose . ’
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