reverberation room [声] 混响室
reverberation-room technique 反射室法 ; 反射室声学试验法
scale reverberation room 缩尺混响室
absorbing coefficient in reverberation room 混响室法吸声系数测量规范
These levels come from outside activities that penetrate the classroom structure, from teaching activities, and other noise generated inside, which can be exacerbated by room reverberation.
这些（噪音）可以是穿透教室建筑结构的室外活动声、教学活动的声音以及室内产生的其它各种声响，这些声音都会因为房间的回声效果而被放大。
First you hear the direct sound, then you hear the room reverberation.
首先你听到的是直达声音，然后你就听到了被延迟的混响声音了。
Reverberation is the persistence of sound in a room after the source has stopped making sound.
回声现象就是在房间中，声源停止发声后，声音仍然持续的现象。
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