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Fixing device for fixing catheter
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Pure natural mask for whitening, tendering skin, removing spots and removing acnes and preparation method thereof
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Pure natural food-grade cold decoction and preparation method thereof
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Production method of methyl carbamate
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Cotton picker spindle grease base plinth oil
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The method for preparing methyl carbamate as raw material using urea
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One kind is plowed formula corn drill and its control method
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The method for preparing tristane dioctyl phthalate as raw material using dicyclopentadiene
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The method for preparing 5 hydroxymethyl furfural as raw material using biomass
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A kind of application of oxygen-containing endocyclic compound in the drug of preparation treatment malignant tumour
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The preparation method of the excellent graphene of abrasion resistance
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Lube base oil and preparation method thereof
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Sewage-treatment plant for environmental protection
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A method of replacing the related substance of Buddhist nun in measurement west difficult to understand
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A kind of Ai Wei replaces the preparation method of Buddhist nun
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Laboratory safety guard system
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It is a kind of for extracting the Chinese herbal ultra-fine powder crushing device of epimedium active constituent
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A kind of UAV Intelligent tracing system
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A kind of composite photocatalyst material and its preparation method and application
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A kind of civil engineering anti-shock mechanism and its production method
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