ac

解释
鉴别码;

同义
ac actinium atomic number 89
词性
n
解释
a radioactive element of the actinide series; found in uranium ores
示例
None

同义
ac alternating current alternating electric current
词性
n
解释
an electric current that reverses direction sinusoidally
示例
In the US most household current is AC at 60 cycles per second