A lot of subjects such as the difference between longitudinal and transverse conductivity, proton compensate, frequency response, and sample geometry etc, remained for further study.
但测试过程中还有许多问题有待进一步研究，如膜的纵向与横向电阻的差别、质子补偿、膜的频率响应特性、测试几何尺寸的影响等。
The frequency response function, frequency-domain and time-domain expressions for the longitudinal vibration velocity at the pile top were obtained further.
研究了渐缩自由桩和渐扩自由桩的桩顶纵向振动速度时域曲线特征；
The longitudinal response frequency and damping features of the flexible wing at both modes of long and short periods are also better than those of the fixed wing.
柔性翼的长周期和短周期模态的衰减特性和阻尼特性略优于刚性翼。
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