长波

Tsunami waves are long waves of gravity, the wavelength of up to 100 kilometers above; its velocity equal to the acceleration due to gravity (9.8 m / s) and the product of the square root of water depth, so the deeper the water, the faster the tsunami wave, the more shallow water , the slower the speed of tsunami waves.

海啸波是重力长波，波长可达100公里以上；它的传播速度等于重力加速度（9.8米／秒）与海水深度乘积的平方根，所以，海水越深，海啸波速度越快，海水越浅，海啸波速度越慢。

In the last chapter,we study the control problems of the distributedparameter system governed by a class of higher order pseudohyperbolicequation related to the symmetric regularized long wave equation.we havediscussed the controllability and optimal control problems.we have obtainedcompatibility condition of the constraint when the state is controllable,therepresentation of the optimal control for both the time optimal control problemand the optimal control problem of minimum energy type,and the equationsatisfied by the minimum time.we have shown that the optimal control belongsto the boundary of the admissible control set.

在第六章中，我们研究了与对称正则长波方程相关的一类高阶拟双曲型方程支配的分布参数系统的控制问题。讨论了系统的状态能控性问题和最优控制问题，给出了状态能控时的约束相容性条件，给出了最速控制问题、最小能量型最优控制问题的最优控制表达式和最速时间所满足的方程式，证明了最优控制属于控制集合的边界。

Thiothymine has several unique properties, such as easy alkylation, ready oxidation and strong absorption in UVA region.

硫碱基有其独特的性质，比如：易烷基化，易氧化和强的紫外长波吸收。

And the numerical solutions of difference equation are regarded as the approximate solutions for the differential equation.

文中首先对对称正则长波方程提出了一个两层和两个三层的有限差分格式。

The auxiliary equation is directly applied to solve the (2+1)-dimensional dispersive long wave equations and the solitary wave solutions and triangular periodic wave solutions are obtained.

利用该辅助方程直接求解了(2+1)维色散长波方程，结果获得了一些孤立波解和周期解，其中包括一些新解。

Auxochromes: An auxochrome is a group which does not absorb significantly in the region 200-800nm, but which affect the spectrum of the chromophore to which it is attached. Examples of auxochromes are

C。 助色团：一些原子和原子团不吸收200-800nm范围内的光，但与生色团结合后，具有能使生色团的吸收峰向长波或短波方向移动的作用，这样的原子或原子团称为助色团。

They have a bell-like life cycle,with a long wave accompanied by a series of short waves.

其生命周期曲线呈钟形且是一条长波伴随着一系列短波。

Because UVA destroys beta-carotene in the skin , it must be replenished continuously .

因为长波捣毁β胡萝卜素的皮肤，就必须不断充实。

Being associated with three research projects, this dissertation makes deeply insight into the fast and accurate analysis, optimal design and manufacture of HF and VHF/UHF broadband omnidirectional miniature loaded wire antennas, loaded helical antennas and multiple-tuned VLF inverted L valley span antennas.

本文密切结合&十五&国防预研项目&软件无线电天线&和&宽带小型化天线&以及国防重点项目&某长波台发信天线电气参数分析与设计&等项目，研究了短波和超短波频段上的宽频带加载线天线、加载螺旋天线和超长波倒L形多路调谐山谷天线的快速精确分析、优化设计以及样机制作。

The characteristics and regularities in the formation and development of wear corrugations are summed up according to the detailed field investigation and measurement, with the classification of corrugations adjusted and a new type of corrugations added in.

对波磨进行了详细的现场调查和测试，总结了磨损型波磨的特征和发生发展规律，对波磨分类进行了调整，提出了在长波和短波间还存在一类中长波磨。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。