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1. Oxford American Dictionary

   impedance

   • IPA[imˈpēdns]

   美式

   • n.
     the effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.

   • noun: impedance, plural noun: impedances

2. • 相關詞

   acoustic impedance

   • n.
     the ratio of the pressure over an imaginary surface in a sound wave to the rate of particle ...

   Oxford Dictionary

   acoustic impedance

   • n.
     the ratio of the pressure over an imaginary surface in a sound wave to the rate of particle ...

   Oxford American Dictionary

3. • 更多解釋

   impedance

   • IPA[ɪmˈpiːdns]

   英式

   • n.
     the effective resistance of an electric circuit or component to alternating current, arising ...

   Oxford Dictionary