拼音：sì shì 词义：风水学术语。指左青龙、右白虎、前朱雀、后玄武四方形势。 （晋）郭璞撰《葬书》： 经曰：地有四势，气从八方，夫葬以左为青龙，右为白虎，前为朱雀，后为玄武。玄武垂头，朱雀翔舞，青龙蜿蜒，白虎顺俯。形势反此，法当破死。故虎蹲谓之衔尸，龙踞谓之嫉主，玄武不垂者拒尸，朱雀不舞者腾去。
第四势差 fourth moment
四维势 four potential ; four-dimensional potential
第四姿势 quarte ; fourth
四元矢量势 [电磁] four-vector potential ; Potential Four-Vector
四、五的手势 Number three\four\five gesture
四分位离势系数 quartile coefficient of dispersion
第四姿势挑引 invitation in quartet
电磁四维势 Four vector potential
四重势垒散射 Four-Potential barriers scatter
第四姿势防守 fourth parry
最后验证了电磁对偶的双四维势电磁场理论具有SO(2)电磁对偶性。
Finally, we verified that the doublet four dimensional potential electromagnetic theory has obvious SO (2) duality symmetry.
我们使用跨势的学习圈和四个步骤，它把我们从课堂学习带到真实世界的工作环境中。
We use the Quest's Learning Cycle and four steps process that takes learning from the classroom to the real world work environment.
在此基础上，用冻结势方法计算了该超晶格系统的价带带阶；用四面体方法计算了该系统的联合态密度。
The valence-band offsets of such systems are calculated by frozen potential method and their Joint density of states has been computed by tetrahedron method.
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