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A kind of high school mathematicses combined appliance for teaching
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A kind of physical teaching aid for measuring optical index
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A kind of handling device for Al alloy parts heat treatment
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A kind of water conservancy mud cleaning and processing unit
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A kind of environmental-protection water conservancy gate of cloud control
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A kind of water conservancy rivers and lakes floating on water pollutant environmental protection cleaning plant
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A kind of water conservancy construction pipe laying actinobacillus device for carrying length records function
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A kind of steel structure bridge building-supporting device
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CN107433685A
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A kind of build concrete agitating device
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CN107386097A
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A kind of steel structure bridge builds damping device
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CN107377490A
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A kind of aluminum alloy die casting high-efficiency washing device
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