The new method can measure damping period of dial instrument rapidly and accurately.
该方法能够快速、准确地测量指针式仪表阻尼时间。
The paper analyzes the disadvantage of general damping period measurement method of dial instrument, researches a automatic damping period measure method, which is based on image recognition.
分析了常用仪表阻尼时间测量方法的弊端，研究了一种基于图像识别的自动阻尼时间测量方法。
For fixed damping and fixed excited frequency the motion of the beam under small amplitude of force is periodic, but becomes chaotic through period doubling bifurcation with increase of the force.
对固定的参数激励频率和阻尼，当参数激励幅值较小时梁的运动是周期的，但大幅值激励会使运动通过倍周期分岔变为混沌。
The electron number density does not strictly obey exponential damping law in a long period.
电子数密度在很长的一段时间内不遵循指数衰减规律。
A method to analyze the resonant wavelength and damping decrement of the transmission spectrum of long period fiber grating (LPFG) with bending curvature was reported.
报道了一种分析长周期光纤光栅(LPFG)透射谱谐振波长和衰减率随弯曲曲率变化的方法。
Since 1976, by using the non—damping horizontal pendulum tiltmeter at the range of 1.7"—5" period. we have recorded one wave anomaly signal before a series of strong earthquakes respectively.
六年来，我们用无阻尼水平摆地倾仪，在1.7秒—5秒的周期范围内，在一系列的强震发生前，分别记录到了一种明显的波动异常。
Since 1976, by using the non—damping horizontal pendulum tiltmeter at the range of 1.7"—5" period. we have recorded one wave anomaly signal before a series of strong earthquakes respectively.
六年来，我们用无阻尼水平摆地倾仪，在1.7秒—5秒的周期范围内，在一系列的强震发生前，分别记录到了一种明显的波动异常。
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