earmuff的音标：earmuff的英式发音音标为：['ɪəmʌf]earmuff的美式发音音标为：['ɪrˌmʌf]...

The optimum design of the controller of compound active noise cancellation earmuff is discussed.探讨了复合式有源消声耳罩的控制器的优化设计方法....

n.御寒耳罩，耳套...