A wave of compression and rarefaction in the atmosphere; esp. a sound wave.
| 单词 | θ75331 |
| 释义 | the world > matter > gas > air > [noun] > air-wave (8) air wave1757 A wave of compression and rarefaction in the atmosphere; esp. a sound wave. Subcategories:— large pressure wave (5) — others (2) |
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