位于活动区磁中性线上方的暗条，随着活动区光球物质运动和磁结构演化， 其上升运动规律呈多样性。根据暗条上升运动的特征，一般将其分为两类：第一类 为缓慢上升(速度为km . s-1量级)，在暗条上升过程中，亚电场加速电子能量为 几十 ~ 100keV量级(E<< ED，E为暗条表面电场强度，ED为经典Drecier场)；第 二类为快速上升(速度为几十 ~ 几百km . s-1量级)，因暗条快速上升在其下方形 成X型中性点，暗条回路能量不断传输给电流片回路，通过磁重联产生的强电场加 速电子和离子(E>> ED，E为103 V . m-1量级)，加速粒子的最大能量取决于重联区 域的磁结构。
The filaments, which locate above the magnetic neutral line in the active regions, have the different properties of the ascending motion with the motion of the optical matter and the evolution of the magnetic structure. The ascending motion may be classified into two sorts. One rises slowly(the velocity of the order 1 km . s-1). In the ascending process of the filament, subelectric fields energize the electron to the energy around 10 to 100 keV(E<< ED, E is the electric field inside the surface of the filament, ED is the classical Drecier field). Another rises fast(the velocity of the order around the several decades to several hundreds km . s-1). The neutral point is formed below the fast ascending filament. The energy is transferred from the filament circuit to the current sheet circuit. The strong electric field induced by the magnetic reconnection accelerates the electrons and the ions(E>> ED, E of the order 103 . m-1). The maximum energy of the particles is decided by the magnetic structure of the reconnection regions.