在双通道示波器上可直观地观测拍现象，并利用拍振动曲线测量交流电的频率。
The phenomenon of beats can be observed directly on the double-channel oscillograph and the frequency of alternating current can be measured by the vibration curve of the beats.
通过运动学分析，得到结晶器振动曲线，并论述了椭圆齿轮设计中的几个问题。
The velocity curve of mold is got through motion analysis. Some key problems are described too.
由频响求解器直接得出电阻基体中点的加速度响应曲线，其仿真精度通过振动试验给予了验证。
The acceleration response curve of resistor body midpoint can be computed by direct frequency response solution, simulation precision is testified by vibration test.
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