寻的运动在相遇点即奇异点展成级数可得解为有界的条件。
The condition for finite solution of homing motion can be obtained from the series form solution at singular point.
采用将圆电流磁矢势表达式中一部分展成级数，使被积函数变成可积分的函数。
A part of results on magnetic vector potential of circular loop are expanded, so the integral function is transformed to integrable series.
对静力问题，将指数矩阵函数展成级数来求解；对动力问题，采用状态空间迭代法来求解。
The exponential matrix function exhibition series was applied to solve the static problem; adopt the state space iterative method was applied to solve dynamic problem.
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