青海都兰热水墓群出土的唐代扎经染色织物(斑布),在刘大玮团队的多重分析下揭开了扑朔迷离的身世:织物的主要原料来源于西南地区,生产则在东南和西南各地,经“认土做贡”制度被运至都城长安后,又以赏赐或贸易的形式流转至包括都兰在内的藩国、邻邦。作为陆上丝绸之路的重要见证,都兰纺织品的研究有力挑战了扎经染色织物“印度起源论”,更彰显了中华文明始终以开放的胸怀拥抱世界,在和平的商贸往来中慷慨待人的气质。
// 3. 计算当日跨度:跨度 = 当前索引 - 上一个更大值的索引(栈空则为i+1)
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In the 1960s, France became the third country, after the US and Soviet Union, to independently place a satellite (Astérix) into orbit, and the only country to send an animal into space and – crucially, for Félicette the catstronaut – bring it back alive. A decade later, the Franco-British Concorde flicked passengers across the Atlantic in three and a half hours and the TGV began to propel them through the countryside first at 250km/h (155mph), and then 320km/h. Then, in the late 1980s, the French space agency designed a crewed spaceplane, Hermès, that corrected for the Nasa space shuttle’s vulnerability by being integrated into its launch vehicle rather than perched atop it.
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