所以在弧线上没有力，但是肯定存在法向力。
So there is no force along the arc, but there must be a normal force.
这里有个法向力-,称之为。
法向力不做功吗？
张力做了功吗，在环形轨道的例子里，也许法向力做了功？
Is the tension doing any work and in the case of my circular track is, perhaps, the normal force doing any work?
涡系诱导作用增强，对侧向力和法向力都有增值。
Enhancement of the vortical effect can benefit both the side force and the normal force.
不同磨粒的法向力与切向力有着良好的线性关系。
With the same cutting velocity, the grinding forces have good linear relationship with plowed surface area.
法向力是影响直线伺服电机运动性能的主要原因之一。
The normal force is one of the key factors which affects the properties of a linear servo motor.
当发生接触时，表面通常通过接触面传播剪力和法向力。
When surfaces are in contact they usually transmit shear as well as normal forces across their interface.
所有的电气触点都可以在接触界面提供一定量的法向力。
Every electrical contact is designed to provide a certain amount of normal force at the contact interface.
既然在y方向上,没有加速度，法向力也等于mgcosθ
Since there is no acceleration in the y direction, the normal force must be also mg cosine theta.
给出了前阻、法向力及压心随马赫数或几何参数的变化曲线。
The paper gives variations in the forebody drag, the normal force and the pressure center in accordance with the Mach Numbers and the geometric parameters.
影响的基本机理是锥面的边界层在转捩时形成了负方向的诱导法向力。
The mechanism of the effect is that the transition induced normal force arise when the boundary layer transition appear on the slender cone.
结果表明，负法向力（即粘着力）随法向力的增加而呈对数规律增加；
The experimental results show that the adhesion increases with the magnitude of normal load at the logarithmic rule;
那么单摆在振动过程中，切向力、法向力及合力的大小和方向是否在变化?。
Do the tangential force, the mormal force, the resultant force and their directions during oscillation of a simple pendulum change?
相比普通旋转电机，三相直线异步电机静态测试时推力和法向力的测定比较特殊。
Compared to the testing system of conventional rotatory motor, the one of 3-phase linear induction motor (LIM) is quite different with the measuring of thrust and normal force.
由此计算出飞行器的法向力、轴向力和俯仰力矩系数，计算结果与实验数据相符。
The aerodynamic coefficients such as the normal force, axial force, and the pitching moment of the ve-hide computed by the local method are in good agreement with the experimental data.
对于更加复杂的情况，由于众多因素的影响，触点产生的法向力会随着时间的变化而变化。
To further complicate matters, the normal force generated by the contact will change over time, due to several factors.
采用有限元分析的方法对直线伺服电机的两种法向力进行分析，分析了推力、法向力与气隙长度的关系。
Two kinds of the normal force of the linear servo motor are analyzed by using finite element analysis. The relations between thrust, normal force and air gap length are analyzed.
得到不完全边界上不同反射波和透射波的振幅比，并导出法向力刚度、切向力刚度和完全粘接时的振幅比。
The amplitude ratios of different reflected and transmitted waves were obtained for an imperfect boundary, and deduced for normal force stiffness, transverse force stiffness and perfect bonding.
通过测量高频感应钎焊金刚石砂轮磨削花岗石过程中的磨削力，对砂轮所受的法向力和切向力进行了研究。
In this paper, grinding forces were measured in the grinding of granite with a high-frequency induction brazed diamond grinding wheel.
文章通过对直线电机在各种条件下所受的法向力与垂直力的测量，得出一系列电流-法向力、垂直力，频率-法向力、垂直力曲线，推出直线电机静态特性，并对其进行了理论分析。
In this papers, I drew a series of thrust and vertical force curve of linear motor by measure them in vary condition. Then, its static characteristic is gained and a theory analysis is made.
计及作用于接触斑点上的切向力，通过比较作用于接触斑点上的法向弹性载荷与法向塑性载荷，确定了区分弹性接触与塑性接触区域的临界接触斑点面积。
Considering the tangential force applied on a contact spot, the critical area demarcating the elastic and plastic regimes is obtained by comparing the normal elastic load with the normal plastic load.
法向冻胀力则是在冻结锋面上冻胀应力沿基础影响范围之内的积分。
The normal frost heave force is an integral of soil frost heave stress at the freezing front along the range effected by a foundation.
深入研究了超声振动和磨粒切削的复合过程，指出超声振动形成的断续磨削机制是降低法向磨削力的主要原因。
In the compound process of ultrasonic vibration and grain machining, the discontinuous grinding mechanism caused by ultrasonic vibration is the main factor decreasing normal grinding force.
首先在ANSY S软件中计算结构受结点力激励时外表面的法向位移；
The normal displacement on the coupling surface which is stimulated by node force is calculated in ANSYS firstly.
我会向公司总裁推荐，你经验法丰富又有创造力，也具有这个职务所不可缺少的精力和热情。
I'll recommend to the company President that you're experienced and very creative. You also have the high energy and enthusiasm that this position absolutely requires. The President, Ms.
从切屑变形力与摩擦力两方面分析了切向磨削力与法向磨削力的比值，大体上应在0.2～0.59范围内。
We have also analysed the ratio between tangential forces and normol forces with respect to both chip formation forces and friction forces. The ratio generally falls within the range of 0.2~0.59.
认为地表冻胀量是冻胀率沿整个冻深的叠加 ； 法向冻胀力则是在冻结锋面上冻胀应力沿基础影响范围之内的积分 。
The normal frost heave force is an integral of soil frost heave stress at the freezing front along the range effected by a foundation.
认为地表冻胀量是冻胀率沿整个冻深的叠加 ； 法向冻胀力则是在冻结锋面上冻胀应力沿基础影响范围之内的积分 。
The normal frost heave force is an integral of soil frost heave stress at the freezing front along the range effected by a foundation.
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