“short-long flashing light”的概念、定义、翻译、参考文献-科学参考

单词	short-long flashing light
释义	short-long flashing light [`shȯrt `lȯŋ `flash·iŋ `līt] ^NAVIGATION A light showing a short flash of about 0.4 second, and a long flash of four times that duration, this combination recurring about six to eight times per minute.
随便看	standard preemphasis standard pressure standard project flood standard propagation standard rate turn standard reference material standard refraction standard sand standard score standard seawater standard shaft standard solution standard star standard state standard station standard subroutine standard target standard temperature and pressure standard terminal arrival route standard test-tone power standard time standard ton standard trajectory standard visibility standard visual range

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