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与"back donation"相近的词条

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• back crossing
• back current
• back cut
• back diffusion、back-diffusion
• back doctor
• back donation
• back door
• back drop
• back dynamometer、back-dynamometer
• back dynamometer with indicator
• back dynamometer with recorder
• back echo
• back electromotive force
• back elevation
• back e.m.f.
• back emission、back-emission

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