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| 主题类别 | 芬兰语 | 英语 |
| 环境 | äänen mittaus | sound measurement Because of the large variations in sound magnitudes, and because the human hearing sensation seems to vary in a logarithmic way, logarithms are used in measurement of sound. The sound pressure level is given in decibels (dB) |
| 环境 | äänen mittaus | sound measurement |