查询词典 velocities

We deduce the formula of the critical thickness of ablator, and put forward the rule of how the thickness of ablator affect the velocities and the stability of flyer.

理论上从阻抗失配效应的临界密度公式，推导出了烧蚀层的临界厚度，并推广到飞片的情形，提出了烧蚀层厚度对飞片速度和稳定性的影响规律。

Lasers characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分，简要总结了状态方程研究的历史，激光作为冲击波驱动源的特点和KrF激光的优势，以及国内外的进展情况；第二章是本工作的理论基础，讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法，重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应，鉴于KrF激光短波长和长脉宽的特点，我们拟对双层飞片的特性展丌研究工作，为实测状态方程做好准备；第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计，进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析；第四章是实验平台描述部分，介绍了光束平滑化技术，靶的制作，条纹相机的原理和使用，系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

Laser's characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分，简要总结了状态方程研究的历史，激光作为冲击波驱动源的特点和KrF激光的优势，以及国内外的进展情况；第二章是本工作的理论基础，讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法，重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应，鉴于KrF激光短波长和长脉宽的特点，我们拟对双层飞片的特性展丌研究工作，为实测状态方程做好准备；第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计，进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析；第四章是实验平台描述部分，介绍了光束平滑化技术，靶的制作，条纹相机的原理和使用，系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

To the Karnopp Control,the absolute velocity is difficult to measure;in the case of achieving the absolute velocity by testing accelerated velocities and c...

基于上述原因，本文提出加速度阻尼控制方法，即采用与车体加速度成正比的振动衰减力来抑制车体振动，并对加速度阻尼控制方法稳定性进行理论分析和仿真研究。

From the motive of exploring the absolute velocity and considering that African plate is nearly stationary,this paper investigates the plate motion relative to Africa using the ITRF2000 velocity data, and has achieved site velocities of main global plates.

为了探求绝对运动速度，考虑到非洲板块几乎不动，利用ITRF2 0 0 0速度数据，研究了相对非洲板块的板块运动，得出了全球主要板块的站速度。

We call this the theorem of addition of velocities.

我们把这个称为速度的合成。

It seems, however, that, since the constancy of the velocity of light is an experimental observation, the resulting velocity in our case must be smaller than we expect-the classical theorem for the addition of velocities must be wrong.

然而，由于光速的恒定是实验的观察结果，看起来，在我们案例中的合成速度必须比我们猜想的小-速度叠加的经典公式肯定错了。

Resolution of the tidal velocities into onshore-offshore and alongshore components indicates that the latter is of equal magnitude to the former.

潮滩滩面输沙输水的向离岸及平行岸线分量属同一量级，因而滩面水沙的沿岸输送，与水沙的净向岸输移一起，构成水沙大尺度水平输移格局。

Through the indoor platform experiment, road experiment and environmental pollution of analogue tunnel experiment, the paper investigates the smog emission amount of diesel and CO emission of automobile in different velocities.

通过室内台架实验、道路实验和模拟隧道污染环境实验，研究了不同车速下柴油车烟雾排放量和汽油车CO排放量。

The radial velocities at different radial positions under a constant flow rate, and at a definite radial position under different flow capacities were calculated and verified by the experimental data measured. The calculated results by using finite element method are in good conformity with the corresponding data measured by using laser Doppler anemometry.

采用有限元方法计算了平板形转盘结构的滤室内流体的径向速度，并用激光测速方法进行了实验验证与研究，得到了径向速度与过滤半径、流通量之间的关系。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷