一些皮带，特别是大宗货物的输送机，在所谓的低谷运行，从而有一个横向的曲率。
Some belts, especially conveyors for bulk goods, run in so-called troughs, thus having a lateral curvature.
动力学数值仿真的结果表明，对小曲率柔性曲线梁，其横向变形比纵向变形大得多。
The dynamic numerical simulation results show that the transverse deflection is much greater than the longitudinal deflection for the flexible curve beam with small curvature.
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