| 1. | This force is the same direction as the displacement .
这个力的方向与位移相同。 |
| 2. | The direction of the force on the upper conductor is downward .
作用于上导体的力的方向朝下。 |
| 3. | The d'alembert forces must be oriented opposite the assumed directions of mass displacements .
达朗贝尔力的方向必须与所设的质量的位移方向相反。 |
| 4. | 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。 |
| 5. | To specify a force , it is necessary to know its direction , magnitude and point of application
要把力说清楚，就需要知道力的方向、大小和施力点。 |
| 6. | 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。 |
| 7. | Fuel pump and lube pump used in present aero - engine and space - engine are oriented to smaller volume , bigger flux and higher pressure
目前，航空航天发动机控制系统中的燃油供油泵、滑油增压泵都在向着小体积、高转速、大流量、高压力的方向发展。 |
| 8. | The bionic boot worked through the same impact tension that gives us bad knees and a chronic need for new running shoes ; it simply reversed this tension via springs and elastic to create propulsion back up in the air
仿生弹跳器同样是利用冲击力的原理来工作的，这种冲击力对我们的膝盖是有害的，因此强烈地需要一种新型跑鞋；它直接将这种冲击的压力通过弹簧的弹性来改变力的方向从而产生一种向上的推力。 |
