针对某型柴油机排气噪声频谱特性，设计了一种新型阻抗复合式排气消声器。
The design process of a new type of exhaust silencer for some diesel engine models was discussed.
提出了一种柴油机机电复合式调速系统，建立了数学模型。
A mathematics model has been established for a mechanical electronic governing system of a diesel engine.
提出了一种柴油机机电复合式调速系统，建立了数学模型。
A mathematics model has been established for a mechanical electronic governing system of a diesel engine.
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