查询词典 wave form

Three parameters of the criterions affecting the efficiency of the gait (the number of links that form the traveling wave n, the included angle between two adjacent links α, and the phase difference of adjacent included angles β) are discussed by simulations and experiments.

通过仿真和实验讨论了相关的3个参数（组成运动波形的连杆数n、相邻连杆的夹角α和相邻夹角的相位差β）对步态效率的影响。

S: hull forms ; form coeffcient ; ship's navigation ; Sea -River-through ship ; wave breaking resistance ; twin skeg afterbody

船体线型；船型系数；船舶航行；江海直达船；碎波阻力；双尾鳍

Fourier analysis is used to cast the considered non-linear wave problem with unilateral Coulomb frictional boundaries to a set of algebraic equations with a simple form.

利用Fourier分析方法将非线性Coulomb摩擦接触边界波动问题化为一组代数方程。

According to the principle of continuity of wave function, when different elements react with each other to form compound, the electronic densities of atoms at interface must be equal. Each atom should change the atomic radius to shift their electrical density, then this made huge micro-stress in atoms.

在单质元素原子形成化合物时，由于要满足量子力学的波函数连续原理，要求原子界面上的电子密度相等，各原子在化合时必须通过改变原子半径以达到相同的原子边界电子密度，从而在原子中产生了很大的微观内应力。

In the second part, we have considered the polariton system described by the model effective Hamiltonian involving single mode photon field interacting with a transverse optical phonon in a more realistic form. On this basis, we have discussed the dynamical evolution of the wave function , the dynamical variables and the non-classical properties for the system in a analytic form for the first time.

第二部分将极化激元系统约化成模型单模光子—横向声子有效相互作用系统，在此基础上以解析形式首次讨论了系统的波函数、力学量和压缩态、亚泊松分布等非经典效应的动力学演化行为。

For the generation of hull form, the mathematic principle of DMSL method is exploited and the contours are designed in detail. Based on Michell integral and the development of wave making resistance theory, a variation method is proposed to connect the hull form with WMR.

然后在概述了兴波阻力理论发展的基础上，推导出了基于Michell积分的兴波阻力对于容许曲面的变分，从而将线型的变化与波阻的变化联系起来，为设计提供了有力的参考。

This invention relates to a method and device for generating cold atomic beam. Said method includes heating hot atom source in vacuum chamber to form atomic saturated vapor pressure atmosphere, cooling hot atom by three-D MOT to below 200uk and trapped to form cold atomic cloud, by the quarter wave plate reflection mirror in MOT the laser radiation pressure being unbalanced to make cold atom emitting along said direction, four tape arranged straight line set with contrary current direction is set in atom beam emission direction, which makes the atom emitted to forward to obtain cold atom beam with low speed, large flux and small transverse speed, laser beam vertical with atom beam set in the direction of cold atom emitting for atom beam state preparation to realize state concordant emitted cold atom beam.

本发明涉及一种冷原子束产生方法和装置，该方法包括在抽真空的真空室内，加热热原子源，在真空室中形成相应的原子饱和蒸汽压气氛；采用三维MOT对热原子进行冷却，冷却到200μk以下，并被捕获形成冷原子云团；通过三维MOT中开小孔的四分之一波片反射镜，而使得在该方向上激光辐射压力不平衡，使冷原子沿此方向出射；在冷原子束出射方向上，还置有载有彼此电流方向相反的四根成锥形排列的直导线，从而原子出射时将在磁场的作用下，不会沿横向膨胀而向前射出；便得到了出射速度低的、通量较大的、横向速度非常小的连续冷原子束；同时在冷原子束的出射方向上，设置有与原子束垂直的激光束，用于原子束的态制备，实现态一致的出射冷原子束。

Therefore, to design the optimal ship form by investigating the mechanism of the wave-making phenomena and predicting the ship wave-making resistance is the focus of ship hydrodynamics at all times.

因此，用理论、试验和数值计算的方法探讨兴波问题的机理，预报船舶的兴波阻力，并以此为基础设计阻力性能最优的船型，一直是船舶水动力学研究的热点之一。

The American economic crisis is a new economy adjustment in the form of Juglar cycle after the new long wave running to its wave peak, and then the American economy will enter a turbulent period of slow growth.

美国经济危机，是其新长波运行到顶后以朱格拉周期形式表现的一次调整，美国经济由此将步入缓慢增长的动荡时期。

Then a model to distinguish skin drag coefficient and form drag coefficient is established based on a floe drag experiment by using a wave-current tank in laboratory, and the quantitative relationship between skin/form drag coefficient and floe geometric parameters is established as a result.

水拖曳系数同海冰几何形态参数的关系才是提高拖曳系数适应性和准确性的最佳途径。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。