alternating current
英 [ˌɔːltəneɪtɪŋ ˈkʌrənt]
美 [ˌɔːltərneɪtɪŋ ˈkɜːrənt]
n. 交流电
牛津词典
noun
- 交流电
an electric current that changes its direction at regular intervals many times a second
柯林斯词典
- 交流电（缩略形式为AC）
Analternating currentis an electric current that continually changes direction as it flows. The abbreviationACis also used.
英英释义
noun
- an electric current that reverses direction sinusoidally
- In the US most household current is AC at 60 cycles per second