Due to the dragging force, trajectories of spacecraft circling planetoid can departure from the standard taper curve orbit which is obtained by the two-body hypothesis.
绕小行星运行的航天器由于受到摄动力的影响，运行轨迹会偏离二体假设下的圆锥曲线轨道。
In this system, the steel wires and steel bars are the main parts that bear the tensile force, the stress in the district above the dragging bar is low.
在拉杆拱体系中，梁底预应力筋和非预应力筋成为主要的受拉部分，拉杆上方成为低应力区。
In this system, the steel wires and steel bars are the main parts that bear the tensile force, the stress in the district above the dragging bar is low.
在拉杆拱体系中，梁底预应力筋和非预应力筋成为主要的受拉部分，拉杆上方成为低应力区。
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