Warning: file_put_contents(/www/wwwroot/ppbbu/bieo.cn/cache/57e121371b7d2c96e7d682537b5cb4cc.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/bieo.cn/index.php on line 58 muffler silencer例句_muffler silencer英汉例句_muffler silencer双解例句_衣物护欧路词典
Regarded engine , exhaust pipe and silencer as a exhaust system of exhausting, the mathematical model for calculation the insertion loss in a muffler is presented. 把发动机、排气歧管和消声器作为一个排气系统整体考虑，建立了消声器插入损失的数学模型。