Example sentences of "is [verb] on some [noun pl] " in BNC.

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1 Extra sail stretchers either in the form of rigid stand-offs made of carbon fibre rod , or flexible glass fibre rods forced by compression into a curve which push the sail upwards and backwards , have become regular features.These serve to dampen the flutter , and to hold the sail form during the critical launch stage in low wind speeds.Trailing edge stiffening with mylar film or mesh overlay is used on some designs .
2 Some of the Naval survey parties may also have landed briefly on Krakatoa , because a hot spring is marked on some maps , but apart from this we know remarkably little about the islands or their volcanic history .
3 The Hobby is often associated with heathland , and the Dartford Warbler is found on some heaths , but neither Woodlarks nor Red-backed Shrikes , both once typical heathland birds of Sussex , have bred in recent years .
4 Most EQ units have line inputs which are not suitable for direct microphone inputs , but these low level signals can be matched by feeding them via an amplification stage , a facility which is provided on some mixers .
5 As an alternative , fuller and more flexible manual exposure control is provided on some machines in the form of a thumbwheel or pair of ± toggle switches which enable you to control the amount of increase or decrease in the exposure and so obtain the best possible picture .
6 Thus , for one group of subjects , A is followed on some trials by both primary and conditioned reinforcement whereas on other trials there is no reinforcer at all ; for the other group , stimulus A is always followed by a reinforcer of some sort .
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