说法可以有多种,意思可表达对就行.
三线摆
three-wire pendulum
three-string-pendulum
trilinear torsion pendulum
trilinear pendulum
three-line pendulum
说法可以有多种,意思可表达对就行.
三线摆
three-wire pendulum
three-string-pendulum
trilinear torsion pendulum
trilinear pendulum
three-line pendulum