消声

A silencer quietens the noise of the engine.

消把发动机的噪音消弭。

The optimum design of the controller of compound active noise cancellation earmuff is discussed.

复合式有源消耳罩的控制的优化设计方法。

The driver deadened the noise of the car with a new muffler.

司机安装新的消减少汽车嗓音。

The article has described the structure and working principle of multiprocess composite die for automobile deafener closure.

介绍汽车消隔板多工序冲压复合模具的结构、工作原理。

The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil...

该消装置结构单,对主要通风机的阻力损失影响小,防尘、防潮及降噪效果明显,可广泛的应用于煤矿主要通风机的消降噪。

The sound tranfer loss of 2 kind of muffler structures are calculated, then tested and verified on the double sound transferrer random exciting exhaust muffler testing rig.

利用此种矩阵,计算两种结构的消的递损失,并在双随机激励消试验台上进行试验验证。

JCQ depurant-muffler is adopted on 49ZQ engine using small rare-earth element balls as catalyst and took the method of quadrature frequency band optimization to opetmize the configuration parameters.

用于492Q发动机的JCQ净化消采用稀土小球为催化剂，用正交频带加权优化法优选消结构参数，取得良好的消、净化性能。

By using this method, the effects of various parameters on the performance of the exhaust muffler and a variation law are clear and all the indexes of the new muffer are improved.

通过正交设计,使新消的各项指标得到提高。