| 单词 | sound-wave |
| 释义 | > as lemmassound-wave sound-wave n. ΘΚΠ the world > matter > physics > science of sound > sound-waves > [noun] undulation1658 wave1832 sound-wave1846 1846 Trans. Royal Irish Acad. 21 i. 65 I proceed now to explain..the circumstances of the great sea wave and of the aërial sound wave, attending most great earthquakes. 1867 J. Tyndall Sound i. 19 The sound-waves, travelling through a homogeneous atmosphere, reached the ear undiminished by reflection. < as lemmas |
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