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中國自主開發的衛星定位和衛星測繪技術在救災中發揮了非常大的作用
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中國並未向日本自衛隊提出特殊的邀請 日本解釋“自衛隊來華”說
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(0/) 2008-05-28 19:11:04
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(0/) 2008-05-23 13:06:48
(0/) 2008-05-23 08:47:46
今天看了一個采訪,地震預報很困難,現在的觀念是:預報不如預防.
(0/) 2008-05-18 17:10:19
(1/) 2008-05-15 17:49:24
1933年中國四川茂縣疊溪7.5級大地震——保存最完整的地震遺跡 (圖)
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已經一天多了,部隊還是進入不了震中汶川,為什麽?將來怎麽打仗!
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