球形构造声聚焦问题始终是建筑声学设计中的一个难点。
It is a difficulty in the design of architectural acoustics all the time that spherical conformation creates sound focusing.
混响时间是建筑声学设计中一个重要指标，混响时间也是评价一个体育馆音质效果的重要参量。
Reverberation time is not only an important index in architectural acoustics design, but also an important parameter to appraise gyms' timbre quality.
建筑声学设计的内容通常包括噪声控制与厅堂音质两方面的内容。而吸声结构则是它的主要技术手段。
The content of architectural acoustics usually includes noise control and hall timbre, and sound absorption is its main technical measure.
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