主余震地震序列的地震振幅比不稳定。
But the seismic amplitude ratio of major aftershock was not steady.
在综合了回声法和频谱振幅比法优点的基础上，提出等效声阻抗法。
Based on synthesizing advantages of the pulse echo and spectral ration techniques, a new method, the equivalent acoustic impedance technique is proposed.
窗函数的主辨与旁辨的振幅比和最大能量比都是窗函数的重要性能指标。
The amplitude ratio of the mainlobe to sidelobe of window function is an important index and so is the maximal energy ratio.
利用干涉图的零频分量消除光源谱分布的影响，获得两束干涉光的振幅比；
The effect of the light source spectral distribution can be cancelled out with the help of the zero order spectrum of the Fourier transform of the interferogram.
我们获得了解析解，然后给出了共振频率、速度分布、振幅比和节点位置公式。
Analytical solutions were obtained, and the formulae for resonance frequency, velocity distribution, amplitude ratio and node location derived.
利用山西区域地震台网记录的40个小震、振幅比资料，计算测定了震源参数。
The source parameters of 40 small earthquakes of Shanxi region were determined from computation of the ratio of P and S amplitudes.
在HBC地区的纵、横波振幅比异常和速度比异常多分布于构造的轴部和小鼻褶上。
The amplitude ratio anomaly and the velocity ratio anomaly in HBC area can be usually seen at anticlinal axis areas and small noses.
在高的结构刚度值条件下，其第一高阶振型为跳跃式，有较大的固有频率值，振幅比也大。
Under the condition of high construction rigidity, its first high order type of vibration was of skipping type which had relatively high inherent frequency, and rather big amplitude.
采用与研究波速异常完全类似的方法，提出了利用振幅比异常预报较大地震的一些初步途径。
The method of earthquake prediction by means of amplitude relation anomalies is suggested, it is analogous to that by means of velocity anomalies.
本文对波振幅比的正常变化作了理论分析，讨论了利用波振幅比变化预报地震的可能性及其应用范围。
The theoretical analysis of normal variations of the 8 and P amplitude relation is given. The possibility and limitation for the use of the amplitude relation in earthquake prediction are discussed.
得到不完全边界上不同反射波和透射波的振幅比，并导出法向力刚度、切向力刚度和完全粘接时的振幅比。
The amplitude ratios of different reflected and transmitted waves were obtained for an imperfect boundary, and deduced for normal force stiffness, transverse force stiffness and perfect bonding.
通过对菲涅耳公式的分析，找到一种新的简单直观的几何图示，能完整地给出菲涅耳公式的四个振幅比关系。
Though the analysis of the Fresmel formula, the builds a new simple and visual geometric illustration which can offer the amplitude ratio named Fresnel formula.
使用振幅比法计算地震的震源机制解软件，要求条件低、计算简便易行，可满足地震台网在地震速报中同时提供震源机制解参数的需要。
The software using method of amplitude ratio can compute source mechanism easily in less limitations. It can give both earthquake location parameter and source mechanism solution.
结果以右前额为参比点记录的心电图R（r）波振幅比以中心电端为参比点的心电图R（r）波振幅大，具显著性差异（P<0.05）。
Results R(r) wave amplitude with the right forehead as the reference point was significantly larger than that with the central terminal as the reference point (P<0.05).
通过对一个球形信号进行傅立叶正反变换，发现用相位谱恢复的图形轮廓比振幅谱恢复的图形轮廓清晰。
Taking the sphere signal as an example, it is found that the phase spectrum is clearer than the amplitude one in resuming input signal.
数值结果表明，增大初始振幅在初始一定距离范围内能减小压缩比，接近理想光孤子的脉冲波形压缩效果最好。
Numerical results show that the squeezing ratio decrease at some initial distance when the amplitude increase and the squeezing was best if pluse wave shape near fundamental soliton.
数值计算结果表明，功率(能量)集中度与光阑的遮拦比、光束截断参数以及振幅调制和位要畸变参数等有关。
Numerical calculation results show the dependence of the power (energy) focusability on the obstruction ratio, truncation parameter, the amplitude modulation and phase fluctuation parameters.
重复实验中，冲突状态下诱发的N270的振幅在C3、C4和P3电极部位比第一次实验显著增强，但潜伏期和第一次实验相比没有显著性差异。
The amplitude of N270 elicited in the conflict condition was enhanced in the repeated test at C3, C4 and P3 electrodes but its latency did not differ from the first test.
裂面形貌扰动频率越小，振幅对裂腔分节临界形态比的影响越显著。
When the frequency is small, the amplitude has an obvious effect on the critical aspect ratio.
所得结果表明此类自振动系统在自激阈附近的振幅涨落比远离阈值时的涨落大很多。
It is shown that the fluctuation of amplitude at the threshold of oscillation is much greater than that when the system is far from the threshold.
低于阀值的地震振幅百分比指示了这些深-半深湖相的平面展布范围。
The seismic amplitude percentages lower than valve values indicate the range of the deep lacustrine facies.
本文在切比雪夫分布和泰勒分布的基础上，提出了一种新的振幅分布即正态分布，并利用正态分布密度函数来设计阵列天线。
Based on Tchebycheff distribution and Taylor distribution, this paper presents a new amplitude distribution-normal distribution, the density function of which is used to design an antenna array.
随着氢气含量的减少，起振临界当量比变大，热声振荡的最大振幅变大。
With reduced the concentration of hydrogen, the oscillation start critical equivalence ratio is higher and the maximum amplitude of thermoacoustic oscillation is larger.
年降水量的年际变化表现为小振幅波动震荡，其他的波动震荡较大且除梅年比外的震荡趋势很一致。
All of them are quite different during past years. Interannual variability of annual rainfall shows the small-amplitude fluctuations and shocks, others show greater fluctuations and shocks.
它的震动方式比传统玻璃更能减弱了声波的振幅。
The way it vibrates is differentthan conventional glass—it damps sound waves.
当原始数据的信噪比较低时， 阈值的选择受大振幅噪音的影响，使压缩比略有下降，但仍然能够保持信号基本不失真。
The results showed that, enen with compression ratio of more than 200, the data could be reconstracted with out significant loss of useful signals by the method.
当原始数据的信噪比较低时， 阈值的选择受大振幅噪音的影响，使压缩比略有下降，但仍然能够保持信号基本不失真。
The results showed that, enen with compression ratio of more than 200, the data could be reconstracted with out significant loss of useful signals by the method.
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