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The concrete which does the concrete compaction
The concrete which does the concrete compaction
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机译：做混凝土压实的混凝土
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摘要
PROBLEM TO BE SOLVED: To provide a concrete compaction remote controller capable of preventing an accident resulting from an electric wire disconnection or the like so that the controller can be operated without using any independent outside power source for the controller as well as no preparation for any new power source device.;SOLUTION: In the remote controller of the concrete compaction device for performing concrete compaction by a vibrator connected to a vibrator power source for outputting a high frequency vibrator driving electric power, a power source circuit converting the electric power of the vibrator power source into an operation power source of the remote controller and a remote controlling circuit for operating an intermediate switch are incorporated into an enclosure of the intermediate switch provided between the vibrator power source and the vibrator to solve a problem.;COPYRIGHT: (C)2003,JPO
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