这出戏是用环境立体声编码的。
文章论述了改善小区声环境质量的途径和措施。
This paper describes measures to improve the sound environment quality.
声学材料是降低噪声，改善声环境的有效措施。
The acoustic material is an effective measure which could reduce noise and improve acoustic environment.
声学材料是降低噪声，改善声环境的有效措施。
The acoustic material is an effective measure which could reduce noise and improve acoustic environment.
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