由于P波和S 波以不同但相当恒定的速度传播，它们到达的间隔与到震源或初始破裂点的距离成比例地增加。
Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.
尾波场效应导致脉冲自相位调制的不对称性，其大小与初始脉冲形状和脉宽大小有关。
The effect of wakefield, which depends on the initial pulse shape and width, leads to the asymmetry of pulse self phase modulation.
学习实例结果表明，按照这一方法不但可以获得高几率的优秀初始参数，而且能大大加快小波网络的后续学习速度。
The training example shows that super initial parameters can be obtained with high probability by this method and, as a result, the network' s training speed can be accelerated very quickly.
三波共振相互作用低频振荡周期与初始扰动振幅有很强的相关关系；
The low-frequency fluctuation periods and the initial amplitudes have close relationship in the resonance interaction.
同时对于RZ - DPSK信号，研究了利用自相位调制实现再生的局限性，给出了利用四波混频实现再生的初始条件。
Besides, the limitation of RZ-DPSK regeneration utilizing self-phase modulation is discussed. The initial conditions using four-wave mixing to achieve regeneration is given.
任何补偿这类初始脉冲畸变的处理，都能改善反射波的质量。
Any process that will compensate for such distortions of the initial pulse should improve reflection quality.
此外，表面波的形态及其演化还对初始扰动比较敏感。
Moreover, the shape and evolution are sensitive to initial disturbance.
在绝热密度扰动(假定初始扰动是绝热的)的方案中，有两种观念特别值得注意：1，宇宙密度波的观念。
Two ideas are worth notice in the adiabatic scenario (assumed that the initial perturbations are adiabatic) : 1. The idea of the cosmic density wave.
光化学点火延迟时间随初始爆炸波后温度和压力的降低而增长。
When the temperature and pressure behind incident shock wave decrease, the photochemical ignition delay times will increase.
首先确定初始阈值，并构造小波系数的关系矩阵，然后结合关系矩阵对高频子带系数进行逐次逼近量化编码。
Finally, the initial threshold is identified and relation matrix is constructed, and the wavelet coefficients of the high frequency subbands are encoded progressively by using relation matrix.
还指出由于当前的连续小波神经网络主要使用传统BP神经网络的随机初始化方法和基于梯度的训练算法，因此存在收敛性差的缺点。
It is also indicated that current WNN has a poor convergence performance because of adopting the random initialization method and gradient training algorithm of traditional BP NET.
以最新的激光动光弹为实验手段，对初始应力条件下的爆破应力波的传播过程进行了实验研究。
A new dynamic holophotoelasticity method is used in laboratory test to study propagation of dynamic stress by blasting subjected to initiative stress.
这使得SCR来控制交流正波的一半，另一半的电压施加到在SCR初始触发该负载。
This permits the SCR to control only half of the AC positive wave; half voltage is applied to the load when the SCR initially fires.
在无初始应力存在并略去热、磁耦合效应时，所得结果变成经典的粘弹波结果。
The results obtained are in complete agreement with the corresponding classical viscoelastic problems when the initial stress, thermal and magnetic couplings are absent.
最后对空储液罐的特征值问题进行了多达近万自由度的计算分析，得到了一些成果，其中有新的发现：（1）空储液罐的多波现象在无初始几何缺陷时依然存在，而且出现在低阶振型中；
In these results there are some new findings:(1) when there is not initial geometry defect, multi-waves phenomena still exist and are presented in low orders in vibrative mode shape;
针对波阻抗方向继电器利用初始电压和电流行波的比值构成的特点，提出了基于小波变换的继电器算法。
According to the property that the surge impedance relay is realized by the ratio of voltage and current travelling waves, the relay's algorithm based on wavelets is present.
对于相同的初始扰动振幅，随着波数的增加，低频振荡周期缩短，三波逐渐变得不稳定，三波之间较强的相互作用时间缩短。
For the same initial amplitudes, the periods are becoming short, the three waves are gradually becoming instability, and the time of strong interaction is shorting with increasing of wave Numbers.
最后我们研究了初始边界值问题。通过数值试验证明，线性正弦波会逐步变为非线性的圆锥型波。
At last an initial-boundary value problem was considered and the numerical experiment demonstrated that the linear sinusoidal wave would successively evolve non-linearly into conoidal wave.
当初始损伤超过某临界值后会显著地影响应力波的波动范围和围岩应力分布；
The initially existing damage has apparently affected on wave stress propagation and stress distribution as long as its quantity exceeds a threshold value.
给出了求解岩石冲击波初始参数的基本方程和极曲线方法。
The basic equations and the polar curve method to solve the initial parameters of shock wave in rock are also developed.
理论说明了初始应力是位移波存在的原因。
In theorem, it is expressed that the displacement wave is founded because of the axial institial stress.
第二阶段，爆炸冲击波作用以冲量的形式作用在穿孔后的剩余板结构上，给板一个初始动能。
The effects of blast shock wave in the second phase are brought to the residual structure in the form of impulse after perforation, and then the circular plates obtained initial kinetic energy.
初步探讨了炮孔水压爆破时，水中冲击波的初始参数和孔壁处冲击波参数；应用弹性理论和波动理论推导出了孔壁岩面上的冲击压力。
When water-pressure blasting, initial shock wave parameters in water and shock wave parameters in hole walls are discussed in this paper.
爆轰波爆点位置在对称轴上并不是固定的点，而是随着初始激波马赫数的变化而发生移动；
The initiation point is not fixed on the focusing point but varies with the incident shock Mach number.
针对小波变换在故障检测与测距中应用的实际问题如小波基函数、小波变换初始数据、行波波速的选取等进行了研究。
The practical problems in the fault detection and fault location using the wavelet transform, such as the wavelet basis function, the initial data, the velocity of traveling wave are studied.
针对小波变换在故障检测与测距中应用的实际问题如小波基函数、小波变换初始数据、行波波速的选取等进行了研究。
The practical problems in the fault detection and fault location using the wavelet transform, such as the wavelet basis function, the initial data, the velocity of traveling wave are studied.
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