您要查找的是不是：
- The forces due to friction are called frictional forces. 由于摩擦而产生的力称之为摩擦力。
- A simple method is proposed to construct the cone formed by the friction forces and moments. 提出一种简单的方法快速构造摩擦力和摩擦力矩形成的圆锥。
- Friction forces of earth acting on the anchor bar of bridge dais were measured for 20 hours on the spot. 本文对锚拉桥台的锚拉杆进行了长达20小时的现场监测试验。
- Improves valve response and reduces friction forces by 66% - Further assurances for better performance with faster valve response. 改进阀门的反应速度和减少摩擦力66%25-更快的阀门反应速度进一步确保阀门具有更好的性能。
- The friction forces decrease markedly after the formation of SAMs with stable structure, which exhibits anti-friction effect. 形成结构稳定的自组装分子膜后，摩擦力比成膜初期的自组装分子膜显著降低，具有减摩效应。
- Abstract Real-time grasping-force optimization is a difficult problem because friction forces between dextrous robot hands and objects are nonlinear constraints. 摘要 由于机器人灵巧手与物体接触所产生的摩擦力约束为非线性约束，导致实时计算手指抓取力受到了极大的限制。
- The airbag brakes use the same function to slam a braking system into the ground, hugely increasing the surface area of friction forces to slow the car. 安全气囊使用相同的刹车功能，大满贯制动系统进入地面，巨大的增加表面积摩擦力减缓汽车。
- As soon as sliding begins, it is found that the friction force decreases. 人们发现，滑动一开始，摩擦力就减
- Frictional forces may also act when there is no relative motion. 在无相对运动的情况下，也可以有摩擦力的作用。
- The observed friction force is the force required to break these tiny welds. 我们观察到的摩擦力，就是破坏这些细微的焊接点所需要的力。
- An alternative model ascribes the stream to frictional forces. 另有一种模型将气流归因于摩擦力。
- In such a situation he would give anything for the sake of just a little friction force. 在这样的情况下，他会不惜任何代价来换取那怕只是一点儿摩擦力。
- When the friction force acts alone, the total mechanical energy is not conserved. 当只有摩擦力作用时，总机械能就不守恒。
- It has been researched and analyzed that the variation regularity of the tension with time and temperature after tensing, as well as the changes and distribution of the friction forces of earth. 对张拉后锚拉杆的张力随时间、温度的变化规律、土摩阻力的变化及分布规律作了分析与研究。
- Because the line speeds of upper and lower work rolls are different, the friction forces on the two work roll surfaces are asymmetrical by which the deformation zone is asymmetrically rolled. 上、下工作辊线速度不相等会引起变形区中两个工作辊面上的摩擦力不对称,导致变形区形成搓轧状态。
- This paper finds the conditions under which numerical instability occurs, and presents a numerical model of dry friction forces,which is proved to bestable and effective through digital simulations. 本文分析了产生数值不稳定的条件，据此提出了一个稳定性良好的干摩擦力数值计算模型，通过仿真表明了算法的有效性。
- This nonlinear change in friction force over a small change in velocity results in uncomfortable feeling when people hitchhike hydraulic lift. 该摩擦力的非线性改变使速度产生变化,导致人们在搭乘液压电梯时产生不舒适感。
- There are two opposite friction forces in the inner and outer surface of ironing blank, the calculation of dynamics and the choice of lubricant are depended mainly on the friction parameter. 变薄拉深时筒坯内外侧与凸、凹模接触面存在两个方向相反的摩擦力,其摩擦参量是力学计算和润滑剂选择的重要依据。
- The friction force is therefore called a nonconservative or a dissipative force. 因此，摩擦力称为非保守力或耗散力。
- Because of the ice and the snow, it has less frictional force. 再加上冰雪在减少磨擦力。
