最直接的答案是：扔掉电源线，实现无线化。
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。
The vibration of the nonlinear pendulum is studied by means of linearization and correction method, the curves of the period ratio and the relative error is plotted.
本文利用线化六自由度运动方程的状态空间式，对某无人机大过载定水平盘旋的稳定性进行分析。
The paper makes use of the six dimensional linearized equations of motion to analyse the dynamic stability of the steady level turning flight of an unmanned aircraft.
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