collision cross section 碰撞横截面
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Moreover, the average collision cross-section between a slow electron and a neutral particle is measured at several different temperatures using both the interferometer and the transmission methods.
本文将条纹干涉仪与透射仪联合使用，测定了在某些温度下慢电子与中性粒子的平均碰撞截面。
Atom loss from the trap and total collision cross section can be inferred from the knowledge of the density of background gases.
在获知背景气体密度的条件下，可以计算出原子损耗和完全碰撞截面。
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