空间可以向球面一样有正的曲率，也可以像马鞍面一样有负的曲率。
Space can have positive curvature, like the surface of a sphere, or negative curvature, like the surface of a saddle.
对不同材料、不同厚度的圆柱面、球面及马鞍面三种典型形状的成形力进行了数值模拟，分析了成形力的变化过程及影响因素。
The forming forces for three typical shapes, i. e. cylindrical, spherical, and saddle surface of different materials with different thickness were simulated.
我跑过去，看是否能帮旅行的人什么忙。他正一面挣脱马鞍，一面狂怒地咒骂着。
I ran to see if I could help the traveller, who was swearing furiously as he pulled himself free of his horse.
路基面动应力在横向呈马鞍分布，动应力沿深度方向衰减较快。
Dynamic stress is distributed as saddle along the lateral direction of subgrade surface. Dynamic stress along the depth declines sharply.
路基面动应力在横向呈马鞍分布，动应力沿深度方向衰减较快。
Dynamic stress is distributed as saddle along the lateral direction of subgrade surface. Dynamic stress along the depth declines sharply.
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