When a curved beam is bending in the plane of the curvature, the neutral axis of crosssection is not identical with the axis of gravity due to the influence of the initial curvature.
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。
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In the elastic region of the cross-section, the stress distribution varies linearly from the neutral axis to the beginning of the yielded area.