guanqi
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He certainly gave Xu Guanqi and his other scholars the " heavenly keys " to open new palaces and perhaps his own virtual palace .
他向徐光启和其他中国学者传授了开启记忆之宫的“神圣钥匙”，并很可能是他们自己构建的虚拟宫殿的“神圣钥匙”。
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The " Elements "( of Euclides Geometry ) which Ricci and Xu Guanqi , an outstanding Ming scientist and minister of rites , jointly translated , spread the knowledge of plane geometry in China .
他与明代杰出的科学家，后来官居礼部尚书的徐光启合译的《几何原本》，对西方平面几何知识在中国的传播起了巨大的作用。