“cone of visibility”的概念、定义、翻译、参考文献-科学参考

单词	cone of visibility
释义	cone of visibility [`kōn ǝv ´viz·ǝ`bil·ǝd·ē] ^{AEROSPACE ENGINEERING} Generally, the right conical space which has its apex at some ground target and within which an aircraft must be located if the pilot is to be able to discern the target while flying at a specified altitude.
随便看	nuclear magnetic resonance nuclear magnetic resonance flowmeter nuclear magnetic resonance gyroscope daylight daylight controls daylight glass daylighting daylight lamp daylight opening daylight saving meridian daylight saving noon daylight saving time daymark day neutral Day's multiplexing system day's run day's work day wage dazomet dB dBa DBCP DB/DC dBf db galaxy

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