alternating voltage

基本解釋

This bar naturally vibrates at 3.145 MHz, but apply an alternating voltage and it vibrates more quickly or slowly.
這種硅條自然的震動于3.145 MHz的頻率，不過當(dāng)施加一個交變電流的時候，它的震動會變快或變慢。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology.
介紹了DC AC系列智能電源逆變器的功能，軟件PWM技術(shù)及其交流電壓輸出調(diào)制技術(shù)。
A sine wave alternating voltage signal is generated synchronously in the presence of gear teeth made of carbon steel, magnetic stainless steel, or iron (ferrous metal).
阿正弦波交流電壓產(chǎn)生的同步信號中的齒輪碳鋼，不銹鋼磁性，或鐵（黑色金屬）提出的存在。

Their job is to convert high-voltage alternating current from the mains into low-voltage direct current for mobile phones, laptops, iPods and other electronic gadgets.
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Large-scale electricity transmission usually uses alternating current, in which both current and voltage oscillate.
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High-voltage DC can carry power over long distances at lower cost than alternating current, but the transformers still cost too much to make the idea widespread.
FORBES: Magazine Article