variac

发音

/ˈvɛəɹiˌæk/

词形变化

variacs 复数 variacs

释义与例句

n.
  1. 1.

    A type of variable autotransformer in which the output voltage is varied by twisting a dial.

词源

From the trademark Variac, presumably from variable AC.

来源：wiktionary