| 1. | If the dip were in the opposite direction, it would be positive .
如果倾斜方向相反的话，它就是正的了。 |
| 2. | The forces between interacting bodies are equal and opposite .
相互作用的物体之间的力大小相等、方向相反。 |
| 3. | The negative sign describes the fact that this is always opposite to the velocity .
这个负号表示这个力总是和速度的方向相反。 |
| 4. | 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。 |
| 5. | The condition of equilibrium of the member requires that the pair of forces coming from the joints must be equal and opposite .
元件的平衡条件要求来自连接点的一对力必须大小相等，方向相反。 |
| 6. | The reactions(forces)on each sphere were equal and opposite and directed along the diameter through the point of contact .
每个球上的反作用（力）大小相等方向相反，其作用方向沿着通过接触点的直径。 |
| 7. | The metaphase plate would thus be the null point between two equal but oppositely directed and acting groups of kinetochore tubules .
中期板大概是两个相等而方向相反的放射状着丝点微管群之间的平衡点。 |
| 8. | Since the law says that for every action there is an equal and opposite reaction, all forces add up to zero .
由于这个定律说：对于每一个作用，都存在着一个大小相等而方向相反的反作用，从而全部力的总和应等于零。 |
| 9. | If the spins are in the same direction, the state is called orthopositronium; if they are opposite, we speak of parapositronium .
若方向相同，则称该自旋态的电子偶素为正电子偶素；若方向相反，则称为仲电子偶素。 |
| 10. | 7 . keep right keep left if symbol reversed
7 .靠右行驶符号方向相反，则靠左行驶 |
