A criterion of zero magnetic field point, which is related with the symmetry of current-carrying system, is derived from a simple problem.
从一个简单问题出发，引出关于磁场零值点的一个判据，该判据与载流系统的几何对称性有关。
The conservation principle of orbital symmetry may be represented as conservation law of bond symmetry, by means of group theory and the point of view of the localized bonds.
利用群论的方法及定域键的观点可以把轨道对称守恒原理表述为键对称守恒规律。
With the structure symmetry, the expressions of the electric-field on the point of a half conductor cylinder are given, and the electric-field characteristics are analyzed.
利用其结构的空间对称性，计算出该理想模型半球壳顶端附近的电场表达式，并对电场特性作简单分析。
This is the first part of our work on time reversal symmetry applied to non-equilibrium statistical stationary states from a unified microscopic quantum statistical point of view.
本文是作者从微观量子统计理论出发应用微观可逆性原理讨论非平衡统计定常态普遍性质的第一部份。
While the upper cylinder gives more effect than the lower one that is located symmetry of the measure point.
而对某一固定测点而言，其受上方圆柱的影响要大于受下方圆柱的影响。
They belong to C_ (2v) local symmetry. From the point of view of point-charge model the ligand field semi-quantitative calculation is applied to molecules with C_ (2v) point group symmetry.
指出它们均具有C_ (2v)局部对称性，并从晶体场点电荷模型出发对具有C_ (2 v)对称性点群的分子进行了配位场半定量计算。
They belong to C_ (2v) local symmetry. From the point of view of point-charge model the ligand field semi-quantitative calculation is applied to molecules with C_ (2v) point group symmetry.
指出它们均具有C_ (2v)局部对称性，并从晶体场点电荷模型出发对具有C_ (2 v)对称性点群的分子进行了配位场半定量计算。
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