室内消火栓系统给水管道有枝状管网和环状管网两种形式。

Indoor water supply pipeline fire hydrant system has two forms: branched network and ranged network.

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结合工程实例，说明了加强建筑排水系统通气管道设置后，排水系统工况及室内空气卫生状况可以得到改善。

Based on engineer example, it is illustrated, that modified vent il ation of building drainage system can improve drainage system and indoor air quality.

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在噪声控制中用于室内吸声降噪以及通风空调系统和动力设备排气管中的管道消声等。

In the noise control, it can be used in sound absorption and noise reduction in the room.

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