1. 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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2. 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.
