振幅

Small aspect change will lead to a big change of the complex amplitude, since, although the variation of the range of each scatterer to radar is very small, it is still large enough compared to the small wavelength and may cause a big phase change.

当视角有微小变化时，虽然各散射点到雷达的距离变化并不大，但相对于微波波长，其相位差的变化相当大，从而使各分辨单元到复振幅有大的起伏，即一维距离像的方向敏感性十分敏感。

The influence of altitude, direction angle, angle of the screen surface and burden thickness on productivity and screening efficiency is revealed.

直线振动筛的振幅、振动方向、筛面倾角、筛面料层厚度等参数对生产率和筛分效率均有直接的影响。

It is necessary to better evaluate the amplitude of the stress variations in equipment extending from surface to sea floor.

有必要更好地评估振幅应力变化的设备从海面到海底。

Aiming at this problem,the concept of the second order power spectrum was proposed based on the characteristic of the amplitude tune with pe- riodical notch spectrum in thin layer and theoretically researched.

为此，从薄层振幅调谐具有周期性陷频谱特征出发，提出了二阶功率谱的概念，从理论上对薄层的二阶功率谱特征进行了研究，建立了薄层厚度与二阶功率谱极大值之间的对应关系，给出了利用二阶功率谱进行薄层厚度预测的理论依据和方法，即根据薄层厚度和二阶功率谱的能量关系制作二阶功率谱图，图上强能量团对应的时间即为薄层时间厚度。

Aiming at this problem, the concept of the second order power spectrum was proposed based on the characteristic of the amplitude tune with periodical notch spectrum in thin layer and theoretically researched. The corresponding relationship between the thickness of thin layers and the maximum value of second order power spectrum was established. The theoretical criteria and method for the thickness estimation by second order power spectrum were given. The second order power spectrum map is made by the energy relationship between the thickness of thin layers and the second order power spectrum, and the time responding to strong energy on the map is the time of thin layer.

为此，从薄层振幅调谐具有周期性陷频谱特征出发，提出了二阶功率谱的概念，从理论上对薄层的二阶功率谱特征进行了研究，建立了薄层厚度与二阶功率谱极大值之间的对应关系，给出了利用二阶功率谱进行薄层厚度预测的理论依据和方法，即根据薄层厚度和二阶功率谱的能量关系制作二阶功率谱图，图上强能量团对应的时间即为薄层时间厚度。

It is found that, the greatest amplitude of each seiche event occurs mostly during the high or low tides.

中文摘要：收集和分析了南海北部沿岸15个海洋站所在港湾发生假潮的资料，并对其中较大振幅的典型假潮个例，进行了港湾基态自然周期分析和假潮振动的频谱分析。

The results show that:(1) Among the 22 cases of large amplitude seiche, 19 cases are related to thunderstorm weather from which three cases are accompanied with sq...

北方气旋型和江淮气旋及西南倒槽型这两种天气类型有利于产生雷暴，并导致大振幅假潮的发生。这两类型分别占 6 2个例的 46 8%和 1 7 7%。

Large amplitude seiches ; Basic characteristics ; Seiche parameters ; Main bays ; Bohai and Yellow Seas

大振幅假潮；基本特征；假潮参数；主要港湾；渤海、黄海

Large amplitude seiche ; weather types ; thunderstorm ; Bohai Sea ; Huanghai Sea

大振幅假潮；天气类型；雷暴；渤海；黄海

The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded on a seismogram at a certain period.

地震级别的数值的是根据某一时期的地震波动的振幅的对数值来计算的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。