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与"helical gear"相近的词条

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• helical CT
• helical diagram
• helical flap
• helical flight
• helical flight mixer
• helical gear
• helical loop
• helical molecule
• helical mount
• helical Mycoplasma
• helical nucleocapsid
• helical-path mass spectrometer
• helical phage tail
• helical pressure tube
• helical rack
• helical repeat

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