Example sentences of "but it can be [verb] by " in BNC.

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1 It causes leaks and blockages in the system , and is a contributor to pump failure , but it can be prevented by the addition of special chemicals .
2 For iron this reaction is written : Iron usually exists in the bivalent ferrous state ( Fe 2 + ; ) in most rock-forming minerals , but it can be converted by oxidation to the trivalent ferric form ( Fe 3 + ; ) with the effect that the neutral charge of the crystal structure is upset and can only be regained by the loss of other cations .
3 All that is a bit abstract but it can be earthed by an example .
4 The cost of a relationship can never be totally abolished , but it can be minimised by extending the common interests .
5 This kick may be very fast , but it can be detected by an opponent much earlier than many other kicks in karate .
6 This has not been shown yet , but it can be shown by running a complete analogue of the argument .
7 Some creasing is inevitable but it can be minimized by judicious stretching of the liner as the pool fills .
8 But it can be helped by giving an injection and it will clear up of its own accord eventually .
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