來(lái)源：央視網(wǎng) | 2023-05-10 15:45:08 |
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天津北方網(wǎng)訊：天舟六號(hào)貨運(yùn)飛船發(fā)射在即，交會(huì)對(duì)接預(yù)計(jì)用時(shí)約6.5小時(shí)。你知道嗎？交會(huì)對(duì)接，這簡(jiǎn)簡(jiǎn)單單4個(gè)字里包含了2個(gè)階段，是航天器在軌運(yùn)行中最復(fù)雜的技術(shù)之一，也是建設(shè)中國(guó)空間站的關(guān)鍵技術(shù)……
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