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A kind of GPS monitoring communicator, navigation terminal and center type navigation instrument
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A kind of construction equipment for installing antenna
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A kind of lighting apparatus based on graphene battery
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A kind of engine piston
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A kind of fuel cell air charging system
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A kind of wind-driven generator combated typhoon
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A kind of wind-driven generator equipment
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A kind of gravity suction pump
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A kind of rotor machine under pneumatic actuation
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A kind of wind-powered electricity generation generating equipment
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A kind of control relay circuit wiring unit
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A kind of switching device of circuit
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A kind of circuit emergency protective device
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A kind of coating atomization plant
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A kind of cutting apparatus for leather
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A kind of spray equipment
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