A silencer quietens the noise of the engine.

声器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,计算了两种结构的声器的传递损失,并在双传声器随机激励声器试进行了试证。

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了。

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

司机安装了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.

介绍了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,计算了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到提高。

A silencer quietens the noise of the engine.

声把发动机的噪音弭了。

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

司机安装了新的声减少音。

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

介绍了声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.

利此种矩阵,计算了两种结构的声的传递损失,并在双传声随机激励声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净化声稀土小球为催化剂，正交频带加权优化法优选声结构参数，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了。

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

司机安装了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.

介绍了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,计算了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，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到提高。

A silencer quietens the noise of the engine.

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、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,计算了两种传递损失,并在双传随机激励验台上进行了验验证。

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、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,使新各项指标得到提高。

A silencer quietens the noise of the engine.

把动机的噪音弭了。

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.

492Q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.

声器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.

利此种矩阵,计算了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净化声器采小球为催化剂，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.

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结、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参数，取得良好、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,使新各项指标得到提高。

A silencer quietens the noise of the engine.

器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.

介绍了汽车器隔板多序冲压复合模具的结、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,计算了两种结的器的传递损失,并在双传器随机激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净化器采用稀土小球为催化剂，用正交频带加权优化法优选器结参数，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,使新器的各项指标得到提高。