但是，由于涉及椭圆积分，一般又不具有均匀电荷环空间势分布的对称性，求解和讨论是比较困难的。
However, because this problem involves elliptic integrals, generally not possessing symmetry of a uniformly charged ring, it is difficult to solve and discuss it.
认为电极与材料的接触势垒和材料内部空间电荷影响着材料的电致发光特性。
It is primarily considered that, the contact barrier between electrode and material and the space charges inside polymers greatly affect their el characteristics.
空间性质一定与引力势有关。
Properties of space must depend on the gravitational potential.
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