“tactical air navigation system”的概念、定义、翻译、参考文献-科学参考

单词	tactical air navigation system
释义	tactical air navigation system [`tak·tǝ·kǝl `er ´nav·ǝ`gā·shǝn ´sis·tǝm] ^NAVIGATION Short-range ultra-high-frequency air navigation system that provides accurate slant-range distance and bearing information; this information is presented to the pilot in two dimensions, that is, distance and bearing from a selected ground station. Also known as Tacan.
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