波次

基于改进单亲GA的多波次攻击最优火力分配

Allocation of Firepower for Multiple Waves Air-to-Land Attack Based on Advanced One-Parent GA

飞机突防波次规划中若干关键技术研究

Key Techniques for Airplane Penetration in Round Attacking Planning

现代空袭是以波次为单位实施攻击的，提出波次规划的概念。

The concept of round attack planning is proposed , because modern air attack is in round unit .

一个共同特征就是该病毒分波次导致疾病，而且常常在首次出现之后变得更具毒力。

One common feature is that the viruses cause disease in waves and often become more virulent months after they first appear .

具体分析了新战争的四个波次，旧式军队对新型战争无能为力。

A detailed analysis of the four waves of a new war , old new kind of war the army could do nothing right .

这凸显了这个岛屿的沿海居民长期缺乏关于海啸的最基本知识&也就是海啸分波次来袭。

This illustrates the chronic lack of awareness about even basic tsunami knowledge that they come in multiple waves among the island 's coastal inhabitants .

Bessel波二次谐波声场的仿真研究

Simulation study on the second harmonic ultrasound field of a Bessel Beam

经测试表明：在一条二维地震测线上，对每一道检波器分别采用声学定位及初至波二次定位，两者间误差均在5m以内。

It is shown by the practice that , using sonic positioning and first breaks secondary positioning respectively for each geophone in a 2D seismic line , the positioning errors for two methods were all within 5m .

分层结构中兰姆波二次谐波发生的模式展开分析

Modal expansion analyses of second-harmonic generation of the Lamb waves in layered structures

提高初至波二次定位精度技术的探讨

Discussion on the technology for improving the accuracy of secondary positioning with first break

海底电缆地震采集系统&初至波二次定位成果的质量评价

Seismic data acquisition system using ocean bottom cable : quality evaluation of first-break secondary positioning result

其中针刺部位为主要因素，脉冲波型次之，针刺方式影响最小。

Position as the main factors which acupuncture , followed by pulse wave , acupuncture means the least .

结合实例，分析了航空电机定转子激振力波阶次及电磁噪声的频率范围。

In a sampling test , analyzed are the level of the excited vibration wave of component force and the range of the frequency of the electromagnetic noise of aero AC dynamos .

在实际应用中由于声学二次定位方法数据采集慢且回收率低，严重影响生产效率，因此近年来国际上大多采用初至波二次定位方法。

In practice , the former has disadvantage of lower data recovery rate that seriously affects the production efficiency , therefore , in recent years , the first breaks secondary positioning method has been used mostly in international scope .

若调制波含有2次谐波，则在啮合频率fm和它的2倍频2fm两侧各形成2个边带。

If modulating wave has secondary harmonic , there are two sidebands in both sides of meshing frequency f m and its doubling freqency 2f m.

实验结果表明炮口冲击波有二次激波形成，超压峰值以炮口前方1m附近最高；

The results show that double shock waves were performed in muzzle blast wave . The peak overpressure point was located at 1 m forward the muzzle .

选取Lagrange乘子，再用广义变分迭代方法得到了孤波的任意次精度的近似解。

Next , its Lagrange operator is selected ; and then , using the generalized variational iteration method , the approximate solution of arbitrary degree of accuracy for the solitary wave is obtained .

分析结果表明，在震源距较小（小于100km）时，直达波与单次散射组合项几乎与整体速度包络重合。

From the analysis result , the result from the group of direct wave and single scattering term match the whole velocity envelope of S wave pretty well at small hypocentral distance ( less than100km ) .

重力波对一次雹暴天气过程演变的影响

The Impact of Gravity Wave on a Hailstorm Weather Process Evolution

多频连续波雷达二次差频测距法的改进

Improvement of Quadric Difference Frequency Base on Multiple Frequencies CW Ranging Radar

包波第二次倒下！他起来了！

Balboa for the second time is down , struggling to get up .

强激光作用下等离子体尾波引起奇次谐波辐射的理论分析

The theoretical analysis of odd harmonic radiation by wake-wave of plasma to arouse under strong laser

自旋密度波对有次近邻互作用超导体的影响

The Effect of Spin Density Wave on 2 + 1 Dimensional BCS-type Superconductors with the Next Nearest Neighbor Interaction

对一阶波浪力计算进行了进一步的简化，在二阶力的波浪力计算中考虑了二阶入射波的二次绕射。

Computation of first-order wave force was simplified , and second-order wave force included second diffraction of second-order incident wave .

针对多次波和一次波重叠且不正交的情况，利用模型数据，采用了基于高阶统计量的方法进行多次波的自适应减，并与单道匹配滤波进行了比较。

Compared with single channel matching filter , the adaptive subtraction based on high-order statistic is illustrated with model data .

采用示波极谱二次导数部分，来测定岩石样品中的微量钼，提高钼元素的分析灵敏度。

This paper proposed adopted two derivative in oscillopolarography to measure trace molybdenum in the rock samples , raised analytical sensitivity of molybdenum elements .

采用二阶微扰近似和模式展开方法，对分层结构中兰姆波的二次谐波发生问题进行了深入研究，得到了二次谐波声场的一般表达式。

Through second-order perturbation approximation and modal expansion approach , the second-harmonic generation of a primary Lamb wave propagating in layered structures has been analyzed , and the general solution to second-harmonic displacement fields has been obtained .

4例肾盏内或输尿管上段残留结石，直径<1cm，术后3周行体外冲击波碎石1~2次，均顺利排出体外。

Residual stones < 1 cm in diameter in the renal calyx or upper ureter were found in 4 cases and were later cured by extracorporeal shock wave lithotripsy ( ESWL ) for 1 ~ 2 times at 3 weeks after operation .

其次，基于各向异性散射模式，分析了直达波与单次散射组合项，以及多次散射项对S波速度包络的影响。

Thus , a new quantitative measurement for the S wave envelope broadening is provided . Secondly , based on anisotropic scattering patterns , the effect of group of direct wave and single scattering term and multiple scattering terms on S wave velocity envelope is investigated .

随着海水深度增大，水体多次波与一次波分离，彼此时差增大，而且多次波能量逐渐衰减，因此两者极易识别。

Along with increasing the depth of sea water , the multiples of water body and primary reflections are gradually separable , and the moveout between them increases , and energy of multiples is gradually attenuated as well , which makes them to be identified easily .