英语词汇“left-right needle”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	left-right needle
释义	left-right needle left-right needle A needle in a navigational instrument, such as in a CDI (course deviation indicator), which gives steering directions to the pilot. The pilot tries to keep the needle in the center, or vertical. See also course deviation indicator.
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