“radio approach aids”的概念、定义、翻译、参考文献-科学参考

单词	radio approach aids
释义	radio approach aids [`rād·ē·ō ǝ`prōch ´ādz] ^NAVIGATION Equipment that uses radio or radar to furnish guidance to an aircraft with required accuracy from the time it is in the vicinity of an airfield until it reaches a position from which a landing can be made.
随便看	open plan open plug open reading frame open resonator open roadstead open rock open routine open sand open sea open set open shop open-side planer open-side tool block open sight open simplex open-space structure open stope open-stope method open storage open subroutine open system open-system architecture open-timbered roof open timbering formation tester

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