JGJ3-2002 controls the structural torsional effect with torsional periodratio and torsional displacement ratio these two indexes.
“高规”通过扭转周期比和扭转位移比双重控制指标对结构扭转效应进行控制。
2
The vibration of the nonlinear pendulum is studied by means of linearization and correction method, the curves of the periodratio and the relative error is plotted.
应用线化和校正方法，研究了单摆的非线性振动，作出了周期比和相对误差随摆角的变化曲线。
3
The ratio of liquid to solid cargo shipped across the Ramian Sea did not vary significantly over the period.