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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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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