There is no change in the motion of a body unless a resultant force is acting upon it.
除非有一合力作用于物体上，否则物体的方向是不会发生变化的。
Do the tangential force, the mormal force, the resultant force and their directions during oscillation of a simple pendulum change?
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?。
This is afraid is not the problem of an enterprise, Chinese net swims need a resultant force.
这恐怕不是一个企业的问题，中国网游需要一个合力。
Prestige status competes with property status and power status, and the resultant force of all three aspects determines an individual's real social position.
声望地位与金钱地位和权力地位相抗衡，三者的合力决定着人们真实的社会地位。
The trajectory of bore hole is proved to be formed by the resultant displacement of the bit instead of the resultant force.
由此得出，决定井眼轨迹的是钻头合位移方向，而不必是合力方向。
In other words, the vertical component of its linear momentum remains zero, since there is no resultant vertical force.
换句话说，因为没有竖直方向的合力，所以线动量的竖直方向仍为零。
As flow begins, the plates open in response to a resultant force (f) which ACTS as the center of the sealed surface area.
当流体开始流动时，阀瓣在作用在密封表面中心的合力(F)作用下开启。
Air spring is a elastic mechanism that using the reactive force of compressing air, reactive force of raising effective area for the deformation and the resultant of above two forces.
空气弹簧是利用其内部压缩空气所产生的反力、随其变形而引起的有效受压面积增加所产生的反力、或两者合力抵御外力的一种弹性机构。
Secondly, analyzing statics characteristic of the multi-gear pump demonstrates that radial hydraulic pressure, meshing force and resultant force are balanced on the center wheel.
其次，对多齿轮泵的静力学特性作了分析，证明了中心轮径向液压力、啮合力及总作用力平衡。
To state the restoring force of a simple pendulum during oscillation is the resultant force of the gravity of the ball and the pulling force of the thread is wrong .
常出现一些模糊认识，即认为单摆在振动中所受的回复力就是摆球所受重力与绳子拉力的合力，显然，这是错误的。
But what these achieve obtain, anything but from what single a certain strength decide, but from various compound what the resultant force direction of history become by strength decides.
而这些成就的取得，绝不是由某种单一力量所决定的，而是由多种复合力量所形成的历史的合力方向所决定的。
Owing to the resultant force of various factors, Balzac gradually formed his realistic literary ideology.
种种因素的合力，使巴尔扎克逐渐形成了现实主义文艺思想。
The actual output force of output weight is the resultant of centrifugal force formed by output weight and the force by reinforcement weight and amplified by step - up system.
输出重块的实际输出力为其自身产生的离心力与增力重块产生的离心力经过高倍放大后再作用在输出重块上的力的和。
By using properties of area-load and of shear-force-addition-correction load resultant expression method in beam has been gotten out from generalized diagram multiplication method.
利用广义图乘法的面积荷载和附加剪力修正值的性质，形成表示梁内任意区间荷载合力的方法。
The frame, which is formed by buttress, breast wall and side wall bear the horizontal loads, and group pile cap bears the resultant force of vertical and horizontal loads.
由扶壁、耳墙、胸墙组成的框架抵抗水平荷载，而以承台、桩基抵抗垂直及水平荷载的共同作用力。
Abstract: this paper points at that the resultant braking force point of drum brake is on the base circle and finds the relation between the structural parameters of shoe block and moment of force.
文摘：该文阐明制动力的合力点在基本圆上，并找出蹄块结构参数与制动力矩之间的关系。
The shape of the P. E course is the consequence of the resultant force of the guiding ideas, the integration of aims, the form of the course and physical and psychological constitution.
体育课程体系的形成，是指导思想、目标整合、学科构建、生理构建、心理构建等方面内容合力的结果。
The frame which is formed by buttress breast wall and side wall bear the horizontal loads and group pile cap bears the resultant force of vertical and horizontal loads.
由扶壁、墙、墙组成的框架抵抗水平荷载，而以承台、基抵抗垂直及水平荷载的共同作用力。
The resultant force of these theories further deepened and ripened the criticism system of Chinese new poems which was established in 1920s.
它们的合力使得在20年代确立起来的中国新诗理论批评体系走向深入和成熟。
The way of pulse-width adjustment which can change the size, the direction and the action time of the electromagnetic resultant force in the stepping motor.
分析了步进电机产生低频振荡的原因，提出了一种新控制方法—脉宽调整法。
The resultant force and the moment of force or torque acting on the mandible which were derived as a function of jaw opening Angle generate accelerations.
在本文建立的力学模型中，作用在下颌上的合力和合力矩表示成下颌运动张角的函数。
According to simplifying rule of force system, the force suffered by a coil carrying current in magnetic field, can be summed up to a resultant of magnetic forces and a total moment of magnetic force.
本文从磁能出发分析外磁场作用在任意载流线圈的磁力和磁力矩，从而推证出任意载流线圈在均匀磁场中所受磁力矩公式。
A simple type is that the forces on two dynamic point charges have the same direction, the scale of the forces are changeable with sine regularity and its' resultant force is stable and nonzero.
对动态电荷群的研究得知能够实现这种悬浮力。 较简单的情形是只要两个动态点电荷满足三个条件，它们各自受到的力就会指向同一方向，力的大小按正弦规律变化，合力不为零且稳定不变。
A simple type is that the forces on two dynamic point charges have the same direction, the scale of the forces are changeable with sine regularity and its' resultant force is stable and nonzero.
对动态电荷群的研究得知能够实现这种悬浮力。 较简单的情形是只要两个动态点电荷满足三个条件，它们各自受到的力就会指向同一方向，力的大小按正弦规律变化，合力不为零且稳定不变。
应用推荐