... 催化转化器catelytic converter 受试排气消声器tested muffler 基准排气消声器base muffler ...
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tested muffler
测试消声器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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。
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Inspired, Jaggi tested configurations in a lab and worked with a muffler shop to install a prototype on a car.
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