mainspring造句怎么写

But acquisitiveness, although it is the mainspring of the capitalist system, is by no means the most powerful of the motives that survive the conquest of hunger.

I was ever near you, and ever tense; but you were no more aware of it than you were aware of the tension of the mainspring of the watch in your pocket, faithfully recording the hours for you, accompanying your footsteps with its unheard ticking, and vouchsafed only a hasty glance for one second among millions.

My life has been music, and a constant search for it has been the mainspring of my life.

The movements of the wrist make the rotor swing and this winds the mainspring automatically.

A cone-shaped pulley with a spiral groove, used in a cord- or chain-winding clock to maintain even travel in the timekeeping mechanism as the force of the mainspring lessens in unwinding.