| 单词 | acoustic comfort index |
| 释义 | acoustic comfort index [ǝ`küs·tik `käm·fǝrt `in·deks] ACOUSTICS An arbitrarily designed scale to indicate the noise inside the passenger cabin of an aircraft; on this scale +100 represents ideal conditions or zero noise, 0 represents barely tolerable conditions, and -100 represents intolerable conditions. Abbreviated ACI. |
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