二次空间的格 lattice in a quadratic space
十二星座的性格 The Traits of Twelve Constellations
二次域的亏格 [数] genus of a quadric field
采用最小二乘法的晶格 least squares lattice
保罗·维格纳尔和其他人发现了在二叠纪末期海洋化石沉积达到多样性高峰的地点。
Paul Wignall and others have found sites where marine fossil deposits reached a peak of diversity at the very end of the Permian period.
我开始相信，这个故事与恩尼格玛密码机的故事、以及二战时德国密码的破译一样激动人心，一样重要。
I became convinced that this story was every bit as exciting and significant as that of Enigma and the breaking of German codes in the Second World War.
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