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词汇
照相侦察卫星
释义
照相侦察卫星
zhào xiàng zhēn chá wèi xīng
利用光電遙感器攝影而實現偵察地面目標的衛星。衛星選擇在150～280千米的近地軌道上，以獲取清晰的圖像。按信息送回地面方式分爲兩類：返回型。將對地面攝影后的膠片存貯在衛星上回收容器中，回收容器脫離運行軌道返回地面；傳輸型。利用光電成像原理偵察攝影，再把圖像信息記錄在磁帶上，在飛往地面臺站控制區時，再將圖像信息發送地面。
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university finance manangement
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university focused on science
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university for minorities
university for nationalities
university for the elderly
university for the nationalities
university for undergraduates
university for women
university foundation
University Foundations
university founding anniversary
university freshman
university freshmen
university fresh student
university function
university function district
university functions
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更新时间：2025/4/1 4:43:53