介绍了轨道交通活塞风亭噪声来源、传播及控制的特点和主要降噪措施，针对实际应用情况，对该系统噪声控制方案进行了优化。%The paper presents the source of the noise in the subway’s piston ventilating pavilion, the characteristic of the noise propagation and control, and the main noise abatement measures and based on the practical application, optimization of system noise control has been made.
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