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与"vacuum still"相近的词条

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• vacuum-spark dischage
• vacuum spectrograph
• vacuum spectrometer
• vacuum spraying
• vacuum spring
• vacuum still
• vacuum sublimation
• vacuum suction
• vacuum suction massage unit
• vacuum supply
• vacuum sweeper
• vacuum switch
• vacuum system
• vacuum tank
• vacuum thermionic detector
• vacuum thermocouple

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