大型厅堂音质设计过程中，控制回声一直为声学设计者所关注。

Echo control is one of the most important things in the building design.

youdao

大型厅堂音质设计过程中，控制回声一直为声学设计者所关注。

Echo control is one of the most important things in the building design.

youdao