Make sure the sequence of traverse beam is installed and deck concrete is cast.

确定了合理的横梁安装顺序和桥面混凝土浇筑顺序。

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When charged particle beams traverse in an accelerating structure, the excited wake fields may dilute the beam energy spread and emittance.

带电粒子束在穿过加速结构时激起的尾场，会导致束流能散和发射度的增大。

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