“surveillance radar”的概念、定义、翻译、参考文献-科学参考

单词	surveillance radar
释义	surveillance radar [sǝr`vā·lǝns ´rā´där] ^NAVIGATION Ground radar used for traffic-control purposes in the approach and landing zone; it is used to assist controllers in converting random arrivals to regular landings and in positioning such aircraft so that they may make low approaches by the use of a fixed-beam, low-approach system or by a precision radar low-approach system.
随便看	Chapman region Characeae Characidae Characoidei character character-addressable computer character adjustment character analysis character boundary character cell character code character convergence character data type character defense character density character disorder character displacement character display terminal character emitter character fill character generator character graphics character group characteristic characteristic acoustic impedance

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