Example sentences of "switches [adv prt] a " in BNC.

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1 The recent development of the electronic ballast switches on a new era in lighting technology .
2 This operates a transistor or a relay ( see Part 6 : April , 1992 issue ) and switches on a siren or bell .
3 Thus the pilots may be found in the Engines Section absorbing the means whereby the aviation spirit and flames arrive at the right place at the right time to produce the urge for forward movement , or they could be watching in some fascination an array of lights and switches on a array known as ‘ electrics ’ which behave themselves so well under the persuasion of the engines instructor , but which flash and fail to respond in such heart-breaking fashion when the student is urged to demonstrate that he has ‘ got ’ it .
4 ( He switches on a smile . )
5 Then she switches on a dumb schoolgirl smile that would n't fool a grandma and she says , ‘ Hey , you dealing , man ?
6 Andre Berry switches on a standard domestic vacuum cleaner powered by a petrol generator to collect material to repair an historic mound .
7 Outside , to the right , the Coke machine switches up a gear , back on for a big freeze .
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