In order to improve the acoustic properties of the auditorium and to amplify the sound, they are not straight, they are curved.
为了改善大礼堂的声学特性，放大音量，他们把这些木板做成了曲面而不是直面。
| 单词 | acoustic properties |
| 释义 |
acoustic properties
原声例句
剑桥雅思听力全真试题 11 In order to improve the acoustic properties of the auditorium and to amplify the sound, they are not straight, they are curved. 为了改善大礼堂的声学特性，放大音量，他们把这些木板做成了曲面而不是直面。 |
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