推动力的英文：
driving force

参考例句：

That money was their chief motivation.
金钱是他们的主要推动力。

The eagerness of Shanghainese to keep up with the latest in fashion is a big boost to the market.
消费的一大推动力，是重仪表赶时髦。

Fear of humiliation is a powerful motivator
帕受羞辱是一种强大的推动力。

Consumer spending was the driving force behind the economic growth in the summer.
消费者支出是夏季经济增长背后的推动力。

His wife is the driving force behind his accomplishments.
他的妻子是使他在事业方面卓有成就的推动力。

The most intrinsic motivation for learning is the child's spontaneous interests.
学习的最为内在的推动力是儿童自发的兴趣。

To fly without propulsion.Used of an aircraft.
滑翔指飞机，无需推动力的飞行

Hence there must be a first cause, and this first cause is God, the initiator of all change in the universe
因此必然存在第一推动力，而这个第一推动力就是上帝——宇宙所有运动变化的始发者。

When the fork truck passes the induction loop an impulse is given.
当叉车穿过该环线感应系统时，给出一个推动力。

This statement would give their struggle a great push forward.
这个声明将给予他们的斗争以巨大的推动力。

driving是什么意思：
adj. 推进的，强劲的，精力旺盛的
n. 操纵；驾驶
v. drive的现在分词

The system tried to join a drive to a directory on a joined drive.
系统试图将驱动器合并到合并驱动器上的目录。

The system tried to SUBST a drive to a directory on a joined drive.
系统试图替代驱动器为合并驱动器上的目录。

This car is a tough baby to drive.
这辆车可不太好开。

This will extend the life of the drive.
这样会延长驱动装置的寿命。

tank driving manual
坦克驾驶教范

force是什么意思：
n. 军队，暴力
v. 强迫，用力推动

by (main) force
用蛮力, 全靠气力; 以最大的力气

The force is spectacular!
这个瀑布很壮观！

resultant force
合力

The threat will force greater dispersion of their forces.
恫吓将迫使他们把兵力铺得更广。

The tension force, shear forces (including pushing force, cutting force and friction force), impulse force, hydrodynamic drag on the suction pipes, and the force resulted from the pressure difference, etc, are the main forces for detail discussion in this paper.
详细讨论了主要作用力：在波浪补偿器作用下的缆绳拉力、耙头与海床间的土壤剪切力、作用在耙吸管上的水流阻力及由于压力差在耙头处产生的推动力等。