构造了单摆大振幅振动的高精度解析逼近周期和周期解。
Analytical approximate periods and periodic solutions to large amplitude oscillation of a simple pendulum are constructed using a new method.
在实验中就要测定单摆的摆长，然后测定此摆长时的振动周期。
So in experiment we should measure the length of single pendulum, then get the period of oscillation in this condition.
通过单摆装置可以方便地研究单摆的振动周期与摆长关系和测定当地的重力加速度。
Using the single pendulum, we can research the relationship between the period of oscillation of it and the length of it and measure local acceleration of gravity.
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