Under the control of the Sun's gravitational force, each planet maintains an elliptical orbit and all of them travel in the same direction.
在太阳引力的控制下，每个行星都维持在一条椭圆形的轨道上，并按照相同的方向移动。
Since it is not easy to judge the direction of force in a fall, much less the extent of force, the belayer must evaluate each situation and make use of the rock for the most secure position.
由于在降落过程中很难判断受力的方向，更不用说受力的大小，因此保护者必须对每一种情况进行估量，并利用岩石取得最安全的位置。
What Galileo had said was no actually the sledge keep going because the natural motion of things is to keep going in the same direction they are going at the same speed unless acted upon by a force.
伽利略说其实雪橇并没有继续前进，物质的自然力以相同速度，朝着相同方向运行，除非受到了某个力的影响。
That's also important — the acceleration is in the direction of the force.
这一也十分重要-，加速度与力方向相同。
Work is defined as the product of a force and the distance through which its point of application moves in the direction of the force.
功的定义是力和力的着力点沿力的方向移动的距离的乘积。
Because of the resistive forces, because of the drag by the liquid, the object is going to get a velocity in this direction, so there's going to be a component of the resistive force opposing it.
因为阻力，因为液体中的阻力，物体的速度，是朝这个方向，所以会有，一个相反的阻力。
The drag force acts in the opposite direction to the path of the ball.
阻力方向与球的运行方向相反。
People sitting next to a hole this size would face a half a ton of force barreling against them in the direction of the hole.
坐在洞旁边的人会面临半吨的力把他们往洞的方向推。
of the force in the x direction.
若只在y方向移动。
The action of forcing gases out from the rear of the jet engine results in a re-active force in the opposite direction, and is commonly referred to as' thrust '.
是强迫从一个重新喷气引擎结果后，在相反方向的积极力量气体进行的行动，并且通常被称为'推力'。
The tail reacts to that change of direction in the primary force (the ball moving), yet it is delayed due to the resistance of momentum.
尾部对主要力（球体运动）的方向变化产生反作用，只是这种作用由于动力的影响而受到了延迟。
The acceleration produced by an unbalanced force acting on an object (or mass) is directly proportional to the magnitude of the force and in the direction of the force.
译文：加速度是由于受到作用在物体（或质量）上的非平衡的作用（力）而产生的，其与力的大小成正比，方向沿力的方向。
In finite elastic deformation, the direction and the density of the boundary force can greatly change with the deformation of the elastic body.
在有限弹性变形中，边界力的方向与密度将随弹性体的变形而发生显著变化。
The effects of different factors, such as the loading direction, the size, the loading speed, the water content and geometry shape, on the chestnut shelled force were investigated in this manuscript.
用准静态压缩试验，对影响板栗破壳力的不同因素——加载方向、板栗大小、加载速率、板栗含水率以及板栗的几何形状进行了分析。
The minus sign is telling you that the force is always pointing in the direction of the potential energy.
力一直是指向，这个方向的，它和势能的增长方向，这就是负号。
The results show that this kind of steering tool can not only realize the control of the magnitude and direction of the bias force, but also is simple in structure and high in reliability.
结果表明，这种导向工具设计方案不但能够实现旋转导向力方向和大小的有效控制，而且结构简单，可靠性好。
A rotor system of the magnetic suspending wind power generator is designed, which is supported with magnetic bearings in radial direction and constrained with mechanical force in axial direction.
设计了一种磁悬浮风力发电机的转子系统，径向方向采用磁力轴承支承，轴向方向靠机械力约束。
A change in the direction of a motion requires a force as does a change of speed.
改变运动方向正象改变速度一样需要外力的作用。
The function of humanity force is also in line with the theory of three elements: strength, direction and functional point.
人文力的作用同样遵循着大小、方向、作用点的三要素原理。
A 35 lb (156 N) force was applied for a period of 1 min to the supply cord at the strain relief in a direction to cause the greatest movement of the cord.
用35英镑（156牛顿）的同方向拉力作用于出气冒口的电源线，维持一分钟，从而使电源线的移动行程最大。
As is mentioned above, a strengthened field is created where the lines of force in the two magnetic fields are parallel and have the same direction.
如上所述，两个磁场的磁力线相互平行且方向相同时，就形成了一个加强磁常。
The calculating formulars of the axial force by landslide along the axial direction of pipeline are derived from the axial force analysis of pipeline buried in the landslide region.
通过对滑坡地带管线的力学分析，导出沿管线轴向滑坡时的管道轴向力计算公式。
The results show that the second order wave force has an effect on the slow oscillation of the floating tower in surge direction.
计算结果表明，波浪的二阶作用对浮式塔的低频纵荡有影响。
If the direction of the force is not the same as that of the velocity, the body is deflected sideways and moves in a curved path.
假如力的方向与速度方向不同，物体就偏向一边，而作曲线运动。
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 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。
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