symmetric center

In view of the symmetric arrangement of the three conductors to the sheath center of a three-core power cable, this paper presents a new approach to calculation of electric field using a charge simulation method.

本文针对三芯电力电缆内三导体布置上的对称性，提出了一种采用模拟电荷法计算其电场的新算法。

Due to the frontal barocline, its temperature field structure evolved from symmetric warm center to asymmetric half cold and half warm extratropical cyclone. And the winds field also has such asymmetric structure.

由于锋面的斜压作用其温度场结构发生了明显变化，由对称的暖心结构演变为半暖半冷的温带气旋非对称结构，相对应的高度场、流场特征亦表现出非对称结构。

Sequential fixed-width confidence intervals of HL for symmetric center

对称中心固定长度的HL序贯区间估计