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1·But the net force is zero.

合力为零的话。

2·The direction of the acceleration is the direction of the net force.

加速度的方向与合力的方向相同。

3·The net force is ultimately the sum of the external force and all the internal forces.

合力是最终的总和，外力与所有内力总和。

4·If ever I do not want to eat, do net force me I know well when I need to and when not.

当我不想吃东西时，不要勉强我，我清楚地知道该什么时候进食。

5·If these were the only two forces, then the net force on this object, on this particle I, would be...

如果这是唯一两个力，那么物体所受的合力，粒子i的合力。

6·If there had been a net force, then indeed it would also go down, if this force were larger than this.

如果没有净力，那就不会下降了，如果那个力大于这个。

7·And so the net, the sum of all forces on that object there is no net force on that wheel but there is a net torque, and that's why it's going to precess.

所以综合，物体受的所有力，车轮不会受到净力，但是有一个，净作用力，那就是我要推进的。

8·And so one string must be pulling in this direction and the other string must be pulling in this direction so that the net force on the system is zero.

因此一条细绳施加一个拉力，朝这个方向，另一条细绳也必然施加拉力，朝这个方向，这样整个整体合力为零。

9·Washing machine washing net force, the water to achieve recycling, and brush pressure is uniform, stable car speed and direction, degree of wear and tear on the car paint is hand washing below 30%.

洗车机洗净力大，水能够实现循环利用，并且刷子压力均匀，洗车速度和方向稳定，对车漆的磨损度是手工洗车的30%以下。

10·Sensuality is only one force pushing the Net toward intelligence.

官能性只是驱动网络智能化的一种力量。