The legs, which are slightly curved with tiny hooks on the tips of their feet to provide enough friction to enable movement in a slippery environment.
它们的腿有点弯曲，脚尖上有小钩，提供足够的摩擦力，使它们能在湿滑的环境中活动。
The impact factor assessment method of curved bridge under moving vehicles mostly adopts the usages of straight beam Bridges, but not enough argumentations can demonstrate the reasonability.
我国的曲线梁桥汽车荷载冲击系数的取值目前仍普遍采用直线梁桥的研究成果，对其合理性缺少足够的研究。
However, if enough force is not applied to the tube, it will not overcome the curved beams and they will stop movement of the tube.
但如果导管上运用的力不足时，力不足以使曲梁弯曲，曲梁将阻止导管移动。
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