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与"vacuum rotary"相近的词条

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• vacuum rectifier tube
• vacuum rectifying apparatus
• vacuum refrigerating machine
• vacuum relay
• vacuum relief valve
• vacuum rotary
• vacuum rotary filter
• vacuum rotary pump
• vacuum sampling method
• vacuum-saturated
• vacuum seal
• vacuum seasoning
• vacuum shutter
• vacuum-spark dischage
• vacuum spectrograph
• vacuum spectrometer

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