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与"roll down"相近的词条

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• roll book
• roll booster
• roll-call、roll call
• roll cell culture apparatus
• roll crusher
• roll down
• roll film
• roll film changer
• roll film photofluorographic camera
• roll film type angiographic unit for high speed seriography
• roll illusion
• roll label
• roll memo
• roll microfilm
• roll mill
• roll-needling

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