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A kind of sleeve type stretching structure of pulley structure
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One kind can hot line job discharge prevention ball gap
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One kind clamps down on grading ring for reactor complex potential
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A kind of actuating device of positive-negative polarity conversion dc voltage generator
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A kind of reduction series resonance reactor noise mechanism
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Novel polarity-change charging transformer for impulse voltage generator
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Power-frequency voltage-withstand test device in SF6 armored type
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Rapidly-installed 4000kV outdoor impulse voltage generator applied to high altitude
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Novel indoor mobile 7200kV impulse voltage generator
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