A silencer quietens the noise of the engine.

声器把发动机的噪音弭。

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

司机安装新的声器减少汽车嗓音。

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

介绍汽车声器隔板多工序冲压复合模具的结构、工作原理。

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.

利用此矩阵,计算结构的声器的失,并在双声器随机激励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净化声器采用稀土小球为催化剂，用正交频带加权优化法优选声器结构参数，取得良好的声、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,使新声器的各项指标得到提高。

A silencer quietens the noise of the engine.

声器把发动机的噪音弭。

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

司机安装新的声器减少汽车嗓音。

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

汽车声器隔板多工序冲压复合模具的结构、工作原理。

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,计算两种结构的声器的传递损失,并在双传声器随机激励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声器采用稀土小球为催剂，用正交频带加权优法优选声器结构参数，取得良好的声、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,使新声器的各项指标得到提高。

A silencer quietens the noise of the engine.

声器把发动机噪音弭了。

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

司机安装了新声器减少汽车嗓音。

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

介绍了汽车声器隔板多工序冲压复合模具结构、工作原理。

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,计算了两种结构声器传递损失,并在双传声器随机激励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JCQ净化声器采用稀土小球为催化剂，用正交频带加权优化法优选声器结构参数，取得良声、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,使新声器各项指标得到提高。

A silencer quietens the noise of the engine.

声器把发动机噪音弭了。

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

司机安装了声器减少汽车嗓音。

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

介绍了汽车声器隔板多工序冲压复合模具结构、工作原理。

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,计算了两种结构声器传递损失,并在双传声器随机激励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JCQ净声器采用稀土小球剂，用正交频带加权优法优选声器结构参数，取得良好声、净性能。

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,使声器各项指标得到提高。

A silencer quietens the noise of the engine.

把发动机的噪音弭了。

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

司机安装了新的少汽车嗓音。

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 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净化采用稀为催化剂，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.

把发动机的噪音弭了。

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 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.

种矩阵,计算了两种结构的的传递损失,并在双传机激励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.

于492Q发动机的JCQ净化采稀土小球为催化剂，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.

器把发动机的噪弭了。

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

司机安装了新的器减少汽车嗓。

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

了汽车器隔板多工序冲压复合模具的结构、工作原理。

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,计算了两种结构的器的传递损失,并在双传器随机激励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净器采用稀土小球为催剂，用正交频带加权优法优选器结构参数，取得良好的、净性能。

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,使新器的各项指标得到提高。

A silencer quietens the noise of the engine.

声器把发动机噪音弭。

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

司机安装声器减少汽车嗓音。

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

介绍汽车声器隔板多工序冲压复合模具结构、工作原理。

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,计算两种结构声器传递损失,并在双传声器随机激励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JCQ净声器采用稀土小球为，用正交频带加权优法优选声器结构参数，取得良好声、净性能。

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,使声器各项指标得到提高。

A silencer quietens the noise of the engine.

把发动机的噪音弭了。

The 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.

介绍了汽车隔板多序冲压复合模具的、作原理。

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,计算了两种的的传递损失,并在双传随机激励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净化采用稀土小球为催化剂，用正交频带加权优化法优选参数，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。