“instrument approach system”的概念、定义、翻译、参考文献-科学参考

单词	instrument approach system
释义	instrument approach system [`in·strǝ·mǝnt ǝ¦prōch ´sis·tǝm] ^NAVIGATION An aircraft navigation system that furnishes guidance in the vertical and horizontal planes to aircraft during descent from an initial-approach altitude to a point near the landing area; completion of a landing requires guidance to touchdown by visual or other means.
随便看	antlerite Antlia Ao horizon A-O-I gate Aoo horizon AOQL aorta aortic aneurysm aortic arch aortic body aortic incompetence aortic paraganglion aortic stenosis aortic valve aortitis aortography AP apachite apandrous APAP apareon apastron Apatemyidae apatetic Apathornithidae

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