介绍了利用速度的损失测定气轨阻尼常数的方法，分析了实验误差的主要来源。
A method that determines the viscous damping constant of air cushion track with measuring the speed losing is introduced and the main sources of experimental errors are analysed.
数值算例指出，束缚空气的存在将使P波速度降低而使其相应的阻尼常数增大，但对S波却无影响。
The numerical calculation shows that the restrained gas will reduce the velocity of P waves and increase the damping constants corresponding to P …
变更膜盒阻尼时间常数。
导出解析形式的稳定性判据和章动阻尼时间常数，可用以估计卫星的稳定度。
The stability criteria and the decay time constant of the nutation damping are obtained in an analytical form, by which the degree of the attitude stability can bd evaluated.
放大器部件阻尼时间常数在0。2 ~ 64秒范围可调。
研究结果表明，结构尺寸、液体介质密度确定的阻尼器的阻尼力矩系数接近一常数，阻尼力矩基本上与阻尼器的转子转速的平方成正比；
Results show that damping moment modulus of damper with given size and liquid medium is almost constant and basically in direct proportion to square of rotor speed.
放大倍数不改变系统的分界频率，但阻尼大小、时间常数和纯延时等非线性环节是影响分界频率的主要因素。
The magnification change has no influence on boundary frequency while the nonlinearity of damping, time constant and pure time delay are its main influencing factors.
放大倍数不改变系统的分界频率，但阻尼大小、时间常数和纯延时等非线性环节是影响分界频率的主要因素。
The magnification change has no influence on boundary frequency while the nonlinearity of damping, time constant and pure time delay are its main influencing factors.
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