To calculate the transfer matrix in the fringeregion of a quadrupole lens, three kinds of methods are used.
文中阐述了四极磁透镜边缘场的三种处理方法，用这三种方法计算了透镜的输运矩阵。
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Part of the motivation for exploring the Kuiper Belt was the recognition of just how little we know about this cold, dark region at the fringe of our solar system.
The fourth chapter ankang city fringe analysis, functional status of the edge area reasonable function orientation to solve the problems existing in the peripheral region.