A silencer quietens the noise of the engine.
动机的噪音
弭了。
A silencer quietens the noise of the engine.
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.
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。
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