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一、引言我国早期从意大利引进的ALENIA单脉冲二次雷达数量较多,现在普遍存在老化现象。重庆ALENIA二次雷达于1993年正式启
I. INTRODUCTION The number of ALENIA single-pulse secondary radars imported from Italy in the early stage of our country is quite large, and the phenomenon of aging is widespread now. Chongqing ALENIA secondary radar officially opened in 1993