The concept about the center of inductive electric charge and the center of electrostatic force are introduced by analogy with the center of mass and the center of gravitation.
类比质心和引力作用中心，引入感应电荷中心和静电引力作用中心概念。
The cases with inductive electric field in and against the direction of lower hybrid current drive are compared.
文中比较了感应电场相对于低杂电流驱动方向取正反两个方向的情形。
We think that the inductive and non-inductive charging processes are primary physical processes for electric structure of the cumulonimbus.
作者认为后三个过程是形成积云电结构的主要物理因子。
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