femtovolt /'femtә,vәult/ 📖 中文释义 [电] 相当于10X伏的电压单位简写为fv 📘 English Definition(英文释义) n. a unit of potential equal to one quadrillionth of a volt (or one thousandth of a nanosecond) ← femtosecond F 字母词表 femtowatt →