英语词汇“yellow arc”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	yellow arc
释义	yellow arc yellow arc A type of range marking on dial instruments indicating a caution zone. In an ASI (airspeed indicator), it indicates that operations must be conducted with caution and in smooth air within the speed range in this zone.
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