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A kind of Soil K+adsorption convenient for taking indigenous equipment
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A kind of Thinprep pap test film-making folder
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A kind of multipoint acquisition formula water sampler and water sampling method
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A kind of reaction vessel
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Engine valve clearance Quick measurement tool and application method
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Engine piston goes out cylinder amount detecting device and method of adjustment
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A kind of engine bearing clearance detector and measurement method
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Automatic automobile engine axial workpiece jitter detection apparatus
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Convenient for the test-bed of automobile engine installing and dismounting
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