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A Type of Vehicle-mounted Forgotten Mobile Phone Alarm System Based on Sound Wave Detection
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Method for respectively recovering titanium, tungsten and vanadium from invalid SCR denitration catalyst
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Method for respectively recovering titanium, tungsten and vanadium from vanadium-titanium waste denitration catalyst
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Method for respectively recovering titanium, tungsten and vanadium from waste SCR denitration catalyst
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Preparation method of rare earth oxide powder with large specific surface area
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Overflow adjusting device of rod mill
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Suspension type medium-low speed permanent magnet suspension train motion control system and control method
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Easily degradable edible straw and preparation method thereof
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Air direction adjusting device for air conditioner outdoor unit
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Bathroom and toilet integrated bathroom structure suitable for old people
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Preparation device and method for different layered combined filling body test samples
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Heavy hammer material level meter suitable for mine chute material level monitoring and use method thereof
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