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单词 microphony
释义 microphony|maɪˈkrɒfənɪ|
1. [ad. Gr. µῑκροϕωνία, f. µῑκρόϕων-ος weak-voiced, f. µῑκρό-ς small + ϕωνή voice.] Weakness of voice. Obs. rare—0.
1849in Craig.
2. Electronics. [f. microphone + -y3.] The generation of microphonics in electrical apparatus.
1934F. J. Camm Everyman's Wireless Bk. v. 91 (table) Microphony: This may result in ringing, booming, or other sounds.1946Electronic Engin. XVIII. 336/2 The ruggedness which is required to give long service will normally ensure freedom from microphony.1951Ibid. 431/2 The design of a valve with low microphony is a long and tedious process.1963Mullard Technical Communications VII. 227/1 Microphony is occasionally experienced in a tape recorder when high gain a.f. valves are used in the first stages.
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