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Efficient and automatic reservoir bottom dredging ecological reef
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Aeration air current purifier that container formula ecology was bred
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Ecological reef device for resource utilization of lake and reservoir sediment
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Underwater liftable aeration combined ecological purification device
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Simple and easy portable automatic lifting control device
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Ecological purification composite set that degree of depth is accurate lift adjustment under water
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Ecological roof heat insulation layer
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ecological submerged bed
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Pure natural water hyacinth deodorant liquid and preparation method thereof
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A kind of automatic sampled measurements device of bottom bed mud
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