“seamark”的概念、定义、翻译、参考文献-科学参考

单词	seamark
释义	seamark [`sē´märk] ^NAVIGATION An object designed as an aid to navigation and located with the express purpose of being visible from a distance to seaward; it is often erected in shoal water rather than on land.
随便看	spherical pyramid spherical radius spherical sailing spherical sector spherical segment spherical separator spherical stress spherical surface spherical surface harmonics spherical triangle spherical trigonometry spherical wave spherical weathering spherical wedge sphericity spherochromatism spherocylindrical lens spherocyte spherocytosis spheroid spheroidal excess spheroidal galaxy spheroidal graphite cast iron spheroidal group spheroidal harmonics

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