This study showed that an increase in the coefficient of friction between the ball and the foot caused the ball to acquire more spin.
这项研究表明，脚和球之间的摩擦系数的增加导致了球获得更多的角动能。
The friction coefficient decreases with the increase of load.
随载荷的增大摩擦系数减小；
It shows that the composites' tensile strength and elongation decrease while the hardness and friction coefficient increase with the addition content of graphite.
结果表明，随着石墨添加量的增加，复合材料的抗拉强度和伸长率逐渐下降，硬度逐渐上升，摩擦系数逐渐变大。
Results show that the addition of PTFE can not only increase the wear resistance of PC, but also decrease its friction coefficient.
结果表明，PTFE的添加不仅可以提高PC的耐磨性，而且还可降低其摩擦系数；
The results show that the friction coefficient and wear rate decrease with the increase of the graphite content.
研究表明，随著石墨含量的增加，摩擦系数和磨损量减小。
The calculation results show that the pressure distribution shape is a convex parabola and the increase of the radial taper of the seal face can decrease the friction coefficient.
计算结果表明，机械密封端面压力分布呈凸抛物线状，增加密封端面锥度可降低摩擦系数。
The deformation moduli increase with increment of crack friction coefficient and decrease with increment of crack density parameter.
随着裂隙摩擦系数的增加，变形模量有逐渐增加的趋势。
In addition, the decline of the temperature, the raise of the drawing velocity, the raise of the friction coefficient all could lead to the increase of the maximum stroke force.
另外，拉深温度的降低，冲压速度的增加，摩擦系数的增大都会使拉深时的最大冲程力增大。
It is found that the friction coefficient increases with the increase of sliding velocity, and there is critical velocity.
试验发现，摩擦系数随滑动速度的增加而增加，存在临界滑动速度。
Revolving join is made of plastic of nanometer technique coat to reduce the coefficient of friction and increase efficiency.
脚蹬的转动副采用纳米塑料薄层，减小了摩擦系数，提高了效率。
The results show that the shock standoff distance, skin friction coefficient and surface heat flux all increase with the strengthening of the external dipole magnetic field.
计算结果表明，外加偶极子磁场使激波脱体距离增加，壁面摩擦系数和表面热流密度增大。
The results show that the maximum temperature of the die has a nearly linear increase with the increase of drawing velocity or the increase of friction coefficient.
结果表明，模具最高温度随拉拔速度的增加和摩擦系数的增加都是近似线性的增加；
The coupling agent can evidently increase impact strength of the composite. Coupling agent, lower the hardness and friction coefficient o…
这种偶联剂使复合材料的抗冲击强度明显提高、硬度降低、耐磨性有较大的提高而摩擦系数略有降低。
The flow friction coefficient increases with the increase of the cooling air Reynolds number and decreases with the rotating Reynolds number.
阻力系数随旋转雷诺数的增大而减小，随冷气雷诺数的增大而增大。
Although the specific wear rates of the coatings increase obviously as the annealed temperature increase, the coefficient of friction exhibits decrease first and then increase.
随退火温度的升高镀层摩擦系数呈现出先降低后升高的变化趋势，比磨损率逐渐增大。
Although the specific wear rates of the coatings increase obviously as the annealed temperature increase, the coefficient of friction exhibits decrease first and then increase.
随退火温度的升高镀层摩擦系数呈现出先降低后升高的变化趋势，比磨损率逐渐增大。
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