例句與造句

1. Clement also introduced the pendulum suspension spring in 1671.
2. The pendulum suspension is made from leather rather than using a metal spring.
3. At the left towards the bottom and almost out of sight is the top of the pendulum suspension where it passes through the jaws of the escapement lever on its way to the suspension point, nearer the top.
4. It's difficult to find pendulum suspension in a sentence. 用pendulum suspension造句挺難的