马腾急拨马回时，两下喊声又起：左边许褚杀来，右边夏侯渊杀来，后面又是徐晃领兵杀至，截断西凉军马，将马腾父子三人困在垓心。
On the left Xu Chu came forth for the kill; on the right came Xiahou Yuan. To the rear Xu Huang cut off the Xiliang army, leaving Ma Teng and his 2 sons surrounded.
用简单数学方法就体心立方晶格和面心立方晶格证明了三维情况下布里渊区体积等于倒格子原胞体积。
It is proved that the volume of Brillouin zone and that of the reciprocal lattice primitive cell are equal for BCC lattice and FCC lattice in three dimensions by a simple mathematical method.
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