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ΪNASAˡܶȳټ(LDSD)֤üɡٳʽ;ͳٻɡõķ֮һͼùֹ1949֮ǰлһθͳ1949̨һ1310λ쵼ʯĸ쵼йλ֣³ϼ;ӽйλ֣лǻ;ǻλ֣Ԫս;ˮһλ֣;Ӣλ֣ͲӢĴӵdz½
ҵЭͳʾijгռгݶ18ԱΪھ˽Լ֮챱29½һߵ30-31ļɹģʽֿ
й±桱ҽѧȸרѧߺṫڵĹ㷺עкʵ֮ڡSeekingArrangement۷粨һֱΪˡԮıǩBBCCNNȶýҹ˾˸汨ˤõġ4ԪһгûоIJƷ̭IJƷӡϴͷĿͷһĴѾҪ2000Ԫ2500ԪдҪ5000Ԫ