In this paper, a convergent scheme of partitioning the wind field into divergent and rotational components over a limited domain is introduced and compared with some methods in current use.

介绍一种具有“收敛”特性的有限区域旋转风与辐散风分解方案，并与目前常用的一些差分方案进行了比较。

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Then, the influences of the beam types, beam energy, beam current, initial radius and divergent angle on the beam propagation are discussed briefly.

然后讨论了影响粒子束传输的各种因素，包括粒子束类型、能量、束流、出口初始束半径以及散角等。

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However, the current views about the subgenus subdivision and the number of species in Citrus are still divergent.

然而，现有的柑橘分类系统在亚属划分和种的数目等问题上分歧依然很大。

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