与"frequency monitor"相近的词条

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• frequency modulated tube
• frequency modulation
• frequency modulation with feedback
• frequency modulation(FM)
• frequency modulator
• frequency monitor
• frequency multiplication
• frequency multiplier
• frequency nodulation
• frequency number
• frequency of bowel movement
• frequency of cardiac impulse discharge
• frequency of collision
• Frequency of Contact(scale)
• frequency of defecation
• frequency of family stress

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