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本文以复数内积及形式导数为工具,并利用变分原理,导出了电-磁的聚焦-偏转重迭场复合系统的相对论五级几何象差方程。In this paper, the relativistic fifth order geometrical aberration equation of a combined electric-magnetic focusing-deflection system with superimposed fields is derived by using varia-tional principle and taking symbolic derivative and inner product of complex numbers as mathematical tools.
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