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与"hard wood"相近的词条

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• hard water syndrome
• hard water treatment
• hard wax flux
• hard white exudate
• hard-wire connection
• hard wood
• hard X-ray
• hard x-ray imaging spectrometer
• hard X-rays
• Hardard pump
• hardback
• hardball
• hardboard
• hardbound
• hardcopy
• hardcover

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