在管道跨越工程中，常用三角形截面组合管拱，由三角形截面桁梁的受力分析图，分析推导出其抗剪刚度。
The pipeline bridge is built up with triangle sections, its shear stiffness can be derived from the stress diagram for the truss with triangle section.
通过一端固定另一端施加横向作用力驱使原子运动，得到纳米单晶铜悬臂梁弯曲的变形图。
The atomic movement of the cantilever beam was motivated by transverse force on one end while another end was fixed, through which its bending deformation image was obtained.
论述了在吊车荷载作用下的简支吊车梁的弯矩包络图的分段、方程求法，最后通过实例说明包络图的绘制。
The paper discussed the sectionalization, the method for finding equation and the drawing of the envelope graph of bending moments of the simple crane girder under the action of crane loads.
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