A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭。

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

探讨复合式有源消声耳罩的控制器的优化设计方法。

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

司机安装新的消声器减少汽车嗓音。

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

介绍汽车消声器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...

该消声装置结构单,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声降噪。

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,计算两种结构的消声器的传递损失,并在双传声器随机激励消声器台上进行证。

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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器结构参数，取得良好的消声、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,使新消声器的各项指标得到提高。

A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭了。

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。

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

司机安装了新的消声器车嗓音。

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

介绍了车消声器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...

该消声装置结构单,对主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机的消声降噪。

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,计算了两种结构的消声器的传递损失,并在双传声器随机激励消声器试验台上进行了试验验证。

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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器结构参数，取得良好的消声、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.

过正交设计,使新消声器的各项指标得到提高。

A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭了。

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

探讨了式有源消声耳罩的控制器的优化设计方法。

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

司机安装了新的消声器减少汽车嗓音。

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

介绍了汽车消声器隔板多工序冲模具的结构、工作原理。

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

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

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,计算了两种结构的消声器的传递损失,并在双传声器随机激励消声器试验台上进行了试验验证。

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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器结构参数，取得良好的消声、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,使新消声器的各项指标得到提高。

A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭了。

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

探讨了合式有源消声耳罩的控制器的优化设计方法。

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

司机安装了新的消声器减少汽车嗓音。

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

介绍了汽车消声器隔板多工序合模具的结构、工作原理。

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

该消声装置结构单,对主要通风机的阻力损失影响小,尘、降噪效果明显,可广泛的应用于煤矿主要通风机的消声降噪。

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,计算了两种结构的消声器的传递损失,并在双传声器随机激励消声器试验台上进行了试验验证。

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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器结构参数，取得良好的消声、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,使新消声器的各项指标得到提高。

A silencer quietens the noise of the engine.

把发动机的噪音弭了。

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

探讨了复合式有源耳罩的控制的优化设计方法。

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

司机安装了新的减少汽车嗓音。

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

介绍了汽车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,计算了两种结构的的传递损失,并在双传随机激励试验行了试验验证。

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净化采用稀土小球为催化剂，用正交频带加权优化法优选结构参数，取得良好的、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,使新的各项指标得到提高。

A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭了。

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。

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

司机安装了新的消声器减少汽车嗓音。

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

介绍了汽车消声器隔板多工复合模具的结构、工作原理。

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

该消声装置结构单,对主要通风机的阻力损失影响小,防尘、防噪效果明显,可广泛的应用于煤矿主要通风机的消声噪。

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,计算了两种结构的消声器的传递损失,并在双传声器随机激励消声器试验台上进行了试验验证。

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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器结构参数，取得良好的消声、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,使新消声器的各项指标得到提高。

A silencer quietens the noise of the engine.

消声机的噪音消弭了。

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的优化设计方法。

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

司机安装了新的消声减少汽车嗓音。

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

介绍了汽车消声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...

该消声装置结构单,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声降噪。

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,计算了两种结构的消声的传递损失,并在双传声随机激励消声台上进行了证。

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机的JCQ净化消声采用稀土小球为催化剂，用正交频带加权优化法优选消声结构参数，取得良好的消声、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,使新消声的各项指标得到提高。

A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭。

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

探讨式有源消声耳罩的控制器的优化设计方法。

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

司机安装新的消声器减少汽车嗓音。

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

介绍汽车消声器隔板多工序冲压模具的结构、工作原理。

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

该消声装置结构单,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声降噪。

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,计算两种结构的消声器的传递损失,传声器随机激励消声器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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器结构参数，取得良好的消声、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,使新消声器的各项指标得到提高。

A silencer quietens the noise of the engine.

消声器把发动机的噪音消弭了。

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。

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

司机安装了新的消声器减少汽车嗓音。

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

介绍了汽车消声器隔板多工序冲压复合模具的、工作原理。

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

该消声装置,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声降噪。

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,计算了两种的消声器的传递损失,并在双传声器随机激励消声器试验台上进行了试验验证。

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净化消声器采用稀土小球为催化剂，用正交频带加权优化法优选消声器参数，取得良好的消声、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,使新消声器的各项指标得到提高。