“phantom bottom”的概念、定义、翻译、参考文献-科学参考

单词	phantom bottom
释义	phantom bottom [`fan·tǝm `bäd·ǝm] ^OCEANOGRAPHY A false bottom indicated by an echo sounder, some distance above the actual bottom; such an indication, quite common in the deeper parts of the ocean, is due to large quantities of small organisms.
随便看	Palaeotheriidae palaeotheriodont palaeotropical palagonite palagonite tuff palama palasite palatal index palate palatine bone palatine canal palatine gland palatine process palatine suture palatine tonsil palatomaxillary arch palatomaxillary index palatoquadrate palau palba wax palea Palearctic paleate pale catechu paleic surface

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