“noise rating number”的概念、定义、翻译、参考文献-科学参考

单词	noise rating number
释义	noise rating number [`nȯiz `rād·iŋ ´nǝm·bǝr] ^ACOUSTICS The perceived noise level of the noise that can be tolerated under specified conditions; for example, the noise rating number of a bedroom is 25, that of a workshop is 65.
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