英语词汇“visual flight rules”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	visual flight rules
释义	visual flight rules visual flight rules [′vizh·ə·wəl ′flīt ‚rülz] (aerospace engineering) A set of regulations set down by the U.S. Civil Aeronautics Board (in Civil Air Regulations) to govern the operational control of aircraft during visual flight. Abbreviated VFR. See VHR See VFR
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