The primary imperial palace - here under the Yuan Dynasty - was from now (1420) to be the newly created Forbidden City.
真正的皇宫挪到了元大都的下面—现在(1420)新建的紫禁城。
Furthermore, worked out under his instructions represented the scientific and technological level achieved by Yuan dynasty in astronomy.
许衡领导制订的《授时历》代表了元代的天文学方面的科技水平。
Furthermore, worked out under his instructions represented the scientific and technological level achieved by Yuan dynasty in astronomy.
许衡领导制订的《授时历》代表了元代的天文学方面的科技水平。
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