"Old America seemed to be breaking up and moving westward," observed an English visitor in 1817, during the first great wave of migration.
1817年，在第一次移民大潮中，一位英国游客观察到：“古老的美洲似乎正在分裂并向西移动。”
Living things seem to be staying within the wave, moving slowly inside it as if they were weightless.
生物似乎停留在波浪中，它们好像没有重量，在波浪中缓慢移动。
Moving out from a source in uniform medium, a wave travels in straight lines.
当波从均匀介质中的波源移出时，呈直线传播。
Kelvin-Helmholtz wave clouds are formed when there are two layers of air moving at different speeds and in opposite directions.
当两层空气以不同的速度、相对的方向移动时，便形成了开尔文一亥姆霍兹浪状云(Kelvin - Helmholtz)。
You should focus on the moving direction of the big wave.
你应该将注意力集中到大浪的运动方向上去。
Although an ocean wave gives the impression of a wall of water moving in your direction.
虽然，海浪给人的印象是一堵由水组成的墙向你压过来。
A momentum transfer of a moving three level atom interacting slantingly with a standing wave laser field is analysed.
分析了一个运动的三能级原子与一个驻波激光场在斜交相互作用时的动量传递行为。
At this time many are moving into light wave brains.
在此时，有很多人进化到光波大脑中。
The vortices in the vortex wave flow have particular moving structure, they develop downstream first, stay at the point for a short time, then move upstream.
涡旋波流场中旋涡有其独特的运动规律——先向下游移动，停留很短的时间后，然后向上游移动。
Considering the underwater work environment, the author analyses the robot movement on the ship hull with wave action, and establishes mechanics model of the robot in stationary and moving state.
针对机器人在水下作业的特点，分析了有波浪作用时机器人在船体表面的运动，建立了机器人在船体表面静止和运动两种状态下的力学模型。
The wave function and probability distribution of a particle in a infinite quantum cylinder well and particle moving in a quantum corral are briefly introduced.
简要介绍了圆形无限深势阱中粒子的波函数、概率分布等特性，以及量子围栏中粒子的运动。
In this paper, the kinetic power theorem is used for solving the problem of interaction between a relativistic electron beam moving in a static magnetic field and a travelling electromagnetic wave.
本文利用动功率定理求解静磁场中运动的相对论性电子束与波导中电磁行波的相互作用问题。
As for the moving objects, I combine particle system and kinetics to realize sea wave and blast model with flying colors.
而对于上述动态对象，运用粒子系统技术以及动力学理论模拟了波浪、爆炸等模型。
The time histories of ground responses and wave motions are presented, and it was found that significant wave propagations are generated when Mach number of moving load approaches or exceeds 1.0.
通过数值计算给出了地基表面振动的动力时程和三维波动场的分布，发现当移动荷载的马赫数接近或大于1.0时地基中产生明显的波动传播现象。
Then the energies move like wave frequencies throughout the channels within the physical structure, moving right up to the brain.
这样能量会像波频一样游遍身体中的各个经脉，直达大脑。
The E, B representation of constitutive relations are given, the wave equation in moving medium and the equations which the longitudinal components of field quantities E, H satisfied are derived.
本文给出组成关系的E、B表示，导出运动介质中的波动方程及场量E、H纵分量满足的方程。
In Zhenzhong Qu, longitudinal wave to the ground moving from top to bottom Britain.
在震中区，纵波使地面上下颠动。
The physics teacher now sets up a transverse wave on a long elastic cord by moving her hand up and down, as shown in the diagram below.
物理学教师现在让有弹性绳子的以横向波形式上下移动，如下面的图解中所示。
Target identification using moving target's acoustic wave is a basic task of the acoustic detection system.
利用声目标在运动过程中产生的声波，对目标进行识别是被动声探测系统的基本任务。
A large number of technical theories and indicators including Gann Theory, Dao Theory, Elliott Wave, RSI, moving average and stochastics.
技术分析最常用的技术理论和指标，包括道琼斯理论，江恩理论，艾略特波浪理论，RSI指标，移动平均线和许多随机指标。
A pulse tube refrigerator driven by a traveling wave thermoacoustic prime engine has no moving parts.
采用热声发动机驱动脉冲管制冷机，使彻底消除低温制冷机中的运动部件成为可能。
Synchronous closing is an intelligent control technique. It can make the moving and stationery contact-header of circuit breaker to close on the specified phase angle of the power system voltage wave.
同步关合是指断路器动、静触头在系统电压波形的指定相角处关合，以减小合闸操作的过电流和过电压的一种智能操作技术。
In this paper a method is presented for analyzing the dynamic response of a buried frame structure subjected to a blast moving wave load of a transient nature.
本文研讨了一种就承受短瞬移动作用爆炸行波荷载的浅埋框架结构进行动效分析的方法。结构系按弹性土体介质内具有分布质量的连续体系进行计算。
If sound wave could be reproduced in a moving electrical current, they could be sent along a wire.
如果声波能够在移动的电流中复制，它们就能够被沿电线传送。
Using the model of plane wave incident to two linear arrays, the tracking of two cross-moving targets was studied through computer simulation.
计算机模拟结果表明，该算法在平面波模型下，利用两个线阵的输出可以稳定地跟踪两个交叉运动目标。
So, it requests radar provided with the ability to restrain clutter wave for differentiating the echo of moving target.
因此要求雷达必须具备很强的抑制杂波的能力，能在较强的杂波背景中分辨出运动目标的回波。
The nonlinear drift-wave equation driven by a sinusoidal wave is discussed in a coordinate system moving in the driving phase speed.
在以驱动波相速度运动的坐标系中，用微扰法讨论。在正弦波驱动下的非线性漂移波的分波方程。
Objective To get some information about the using of the ultrashort-wave on the teeth moving at the clinical practice.
目的探讨超短波辅助技术在加速正畸牙齿移动方面的临床应用效果，从而为其临床实践提供理论依据。
The circuit substrate (100) is provided with an aperture region. As the speaker (2) is disposed on that region, a test sound wave is output to the moving section of the microstructure.
而且，在电路基板(100)中设置开口区域，在其上装载扬声器(2)，由此对微小结构体的可动部输出测试声波。
The equation of infrasonic wave taking into account the gravitational effect in moving media is derived, with multi-layer atmospheric model.
本文推导了计及重力效应运动媒质中的次声波动方程和用速度的散度表示的分层大气模型下的频散方程；
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