“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	selective dump selective fading selective filling selective flotation selective fracturing selective fusion selective heating selective identification feature selective inhibition selective interference selective jamming selective loading selectively doped heterojunction transistor selective medium selective mining selective permeability selective photoelectric effect selective plating selective poisoning selective polymerization selective quenching selective radiator selective reflection selective replacement selective ringing

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