英语词汇“proficiency training aircraft”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	proficiency training aircraft
释义	proficiency training aircraft proficiency training aircraft Aircraft required to maintain the proficiency of pilots and other aircrew members who are assigned to nonflying duties. AcronymsSeepoints-to analysis
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