例句與造句

1. Also called torsion-spring pendulum, this is a wheel-like mass ( most often four spheres on cross spokes ) suspended from a vertical strip ( ribbon ) of spring steel, used as the regulating mechanism in torsion pendulum clocks.
2. The equation describes the motion of a damped oscillator with a more complex potential than in simple harmonic motion ( which corresponds to the case \ beta = \ delta = 0 ); in physical terms, it models, for example, a spring pendulum whose spring's stiffness does not exactly obey Hooke's law.
3. It's difficult to find spring pendulum in a sentence. 用spring pendulum造句挺難的