例句與造句

1. During the compression and expansion phases of two colliding bodies, each body generates reactive forces on the other at the points of contact, such that the sum reaction forces of one body are equal in magnitude but opposite in direction to the forces of the other, as per the Newtonian principle of action and reaction.
2. By deduction from the principle of action and reaction, if the collision impulse applied by the first body on the second body at a contact point \ mathbf { p } _ r \ in \ mathbb { R } ^ 3 is \ mathbf { j } _ r, the counter impulse applied by the second body on the first is-\ mathbf { j } _ r.
3. It's difficult to find principle of action and reaction in a sentence. 用principle of action and reaction造句挺難的