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与"frequency relay"相近的词条

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• frequency programed microwave pectrometer
• frequency-pulsed electron capture
• frequency range
• frequency ratio
• frequency regulator
• frequency relay
• frequency response
• frequency response curve
• frequency response curve of auditory neuron
• frequency response tracer
• frequency sampling filter
• frequency sampling theorem
• frequency scale
• frequency scaling
• frequency scanning
• frequency selecting amplifier

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