Study of Unmanned Aircraft Launch Process Simulation in the Variable Wind Field

无人机穿越 变化风 场起飞特性仿真研究

Physical mechanism of free-electron laser with guide magnetic field and variable Wiggler field

具有导向磁场的 可变 Wisggler自由电子激光器的物理机制

It is proved that the research of GRACE timely variable gravity field can provide credibility evidence for the study of global hydrological cycle observation and its effect on the climate alteration . They always connected water with their attitude .

研究表明，利用GRACE时 变重力 场可以很好的对水储量进行监测，其监测能力足以揭示几个厘米的等效水高，为全球水循环及其气候变化提供了可靠的资料。

A value that is connected to the input terminal of such an expression represents assignment of the value to the variable or field .

被连接到此种表达式的输入终端的值表示对该 变量或 字段的赋值。

The Living Systems Theory ( LST ) which has been put forward by J. G. Miller ( 1978 ) is a synthetic theory it has been applied to variable field abroad .

生命系统理论是J.G.Miler1978年提出的跨学科综合性理论，在 国外已取得了 广泛的应用。

More precisely it tells you that what you might have learned about electric fields deriving from electric potential becomes false if you have a variable magnetic field .

更精确地说，电势产生电场，这一观点是错误的，如果忽略 变化 磁场的存在的话。

A method to produce the variable gradient field is presented .

文中还讨论了产生 变梯度 磁场的方法。

The results show that in variable temperature field the states and stress of suspension bridge are different from the calculated value and the influence of the temperature must be considered in the structural analysis of suspension bridge .

计算结果表明：在 非设计 温度下，主缆的位形及其内力值均与设计理论值有较大误差，因此在悬索桥的结构分析中必须考虑温度变化的影响。

The application and prospect of machine vision have been introduced briefly in the variable machinery field such as navigation and farmland spray and so on .

最后扼要介绍了机器视觉在 田间导航、农田喷洒等 变量机械中的应用及展望。

Iteration Calculation for Initial States of Main Cable in Variable Temperature Field

非均匀 变温 场中主缆初始位形的迭代计算

A three-dimensional computational of fluid dynamics method is used to study the flow structures and mixing property of Y typed micro impinging jet with variable density field .

运用三维 变密度不可压计算流体力学方法对微型Y形冲击 射流进行流动结构研究。

Cssclass : This is the css class variable for the field .

cssclass：这是 字段的css类 变量。

From the fact that the variable electric field can excite a magnetic field in this paper we investigate the essence of displacement current and conduction current as well as the relation between them which gives a deeper understanding of the electromagnetic field theory .

从 变化 电场激发磁场这一现象入手，对位移电流和传导电流的实质及其关系加以讨论，进一步加深对电磁场理论的认识。

The displacement current corresponding to a variable irrotational electric field does not excite any magnetic field .

对应于 可变有源无旋 电场的位移电流不激发磁场。

Engineering Simulation Method of Variable Wind Field in Synthetic Natural Environment

综合自然环境中 变化风 场的工程仿真方法

In Figure 5 the Condition ( function or variable ) field is set to the jexl () function .

在图5中，Condition（函数或 变量） 字段被设置为jexl（）函数。

The Effect of Variable Wind Field on the Overall Height of Meteorological Rocket

变化风 场对气象火箭射高的影响

Numerical simulation of three-dimensional flight of aircraft in variable wind field

飞机在 变化风 场中三维运动的数值仿真

Close connexion between simulated electrocardiogram principle and variable electric field

模拟心电原理与 变化 电场的紧密联系

In this article it is pointed out that calculating induced electric field caused by variable magnetic field in constant velocity by analogical method is a simple method .

用类比方法来计算以恒定速率 变化 的 磁场产生的感应电场是一个简便的方法。

Collective Radiation Spectra of the Resonant Inverse Compton Scattering of the Assembly of Relativistic Electrons in A Variable Magnetic Field

变化 磁场中相对论电子系集体的共振逆康普顿散射谱

Synthetic natural environment ( SNE ) includes four primary domains : terrain ocean air and space . As an important part of air environment variable wind field would affect the performance of aircraft .

综合自然环境包括地形、大气/气象、海洋、空间四大领域， 变化风 场作为大气环境中的重要组成部分，其对飞行器使用性能的影响不容忽视。Air（初三适用）

In this paper the general motion equation of the unmanned aircraft with consideration of arbitrary variable wind field are outlined and derived after the necessary characteristics parameters and the engineering models of the variable wind field are introduced and defined .

引入和定义了必要的风场特征参数和工程化模型，建立了计及任意 变化风 场的无人机运动方程。

It is the key step for implementing precision agriculture to collect geo-referenced variable information from field .

基于精确地理位置的 农田信息采集是实施 精准农业的基础工作。

Through the improvement to the four-ball tester oil cup a controllable and variable magnetic field was obtained . By this four-ball tester the load capacity of Fe_3O_4 ferrofluid in the magnetic field was tested .

通过对MS-800四球机油杯的改进，在测试 区域 内产生可 调 磁场，利用该改进后的油杯在四球机上对磁场作用下Fe3O4磁流体承载能力进行测定。

Based on the equation of variable temperature field a formula in order to calculate the length of the non-stress cable is deduced .

根据主缆的温度 变化方程导出了温度 变化时无应 力索长计算公式。

The Modeling of Variable Wind Field and Flight Simulation of High Span-Chord Ratio Unmanned Air Vehicle

变化风 场的建模与大展弦比无人机飞行仿真