“hyperacoustic zone”的概念、定义、翻译、参考文献-科学参考

单词	hyperacoustic zone
释义	hyperacoustic zone [¦hī·pǝr·ǝ¦kü·stik ´zōn] ^GEOPHYSICS The region in the upper atmosphere, between 62 and 100 miles (100 and 160 kilometers), where the distance between the rarefied air molecules roughly equals the wavelength of sound, so that sound is transmitted with less volume than at lower levels.
随便看	layer depth layer depth effect layered architecture layered complex layered-protocols technique layer impedance layering layering of firedamp layer lattice layer loading layer of no motion layer silicate layer structure layer winding lay off layout layout character lay ratio lay-up lazaret lazuli lazulite lazurite lazy evaluation lazy H antenna

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