The projection optics is designed for a constant field angle and entrance pupil. Thus image always fills entrance aperture and view field of the test optical system.
从光学指标的确定，结构、材料的选取到最终光学性能，阐述了准直投射光学系统的设计。
A constant field in a class is similar to a global or function constant, except that it is scoped to the class and it can have various modifiers governing its visibility and usage.
类中的常数字段类似于全局或函数常数，不同的只是它的作用范围是该类，而且它可以用多个修饰符来指定其可见性和用法。
They think people who change their jobs frequently are feckless. They believe that the only way to success is to stick to one job, for constant practice in a professional field helps make an expert.
许多人喜欢一生中做一件工作，他们认为经常换工作的人软弱无能，他们相信成功的唯一途径就是坚持一项工作，因为在一个专业领域里不断的实践有助于专家的形成。
If you take a vector field that is a constant vector field where everything just translates then there is no divergence involved because the derivatives will be zero.
如果取的向量场是处处恒定的，所有点都是平移关系，所以没有散度，因为导数为零。
And, in some cases, for example, if you know that the vector field is tangent to the curve or if a dot product is constant or things like that then that might actually give you a very easy answer.
例如，在某些情况下，如果已知向量场与曲线相切，或者内积是一个常数等等，那么结果将会很简单。
Previous experiments have shown that applying a constant electric field created small effects on flames, but Cademartiri's work used an oscillating electric field to greater effect.
过去的实验已证实，施加恒定电场于火焰上会产生较小的效应，而Cademartiri在工作中采用振荡电场得到了更显著的效应。
Embedded statements are not allowed in constant expressions, such as the value of an enumeration constant, the width of a bit-field, or the initial value of a static variable.
在常量表达式，比如枚举型常量、位域的宽度或是静态变量的初始值，是不允许使用在这种声明中的。
And it says that the divergence of the electric field is equal to, so this is a just a physical constant, and what it is equal to depends on what units you are using.
它说的是，电场的散度等于，这是一个物理常数，它等于什么，是基于所用的单位。
Also as the name says, implicitly typed local variable, you cannot use var for field declaration or constant variables, therefore following declarations will both produce a compiler error.
故名思意，“隐式类型局部变量”将无法用于域变量或常量的声明中，否则将导致编译错误。
When you constructed the message element target using the Add/Edit dialog in Figure 8, you left the Type field as String so that the Value field could be the desired string constant.
在使用图8中的Add/Edit对话框构建消息元素目标时，您将Type字段保留为String，以便Value 字段是所希望的字符串常量。
Based on the final result, I might decide to remove that constant and add a field to the TriangleType class that indicates an invalid triangle.
根据最终的结果，我可能决定去掉常量并向代表无效三角形的triangletype类中加入一个字段。
RubyMine 2.0 adds several new refactorings, such as Extract Module/Superclass, Introduce Variable/Constant/Field, Inline Variable and Pull Up/Push Down Members.
RubyMine 2.0加入了一些新的重构，例如抽取模块/超类，引入变量/常数/Field，内联变量以及取出/放入成员。
The first column contains a constant value (" All ") and is sorted. This lets you read the same field out of each document with this keyword lookup formula.
第一个列包含一个常量值(“All”)，并且经过了排序。
They believe that the only way to success is to stick to one job, for constant practice in a professional field helps make an expert.
他们认为成功之道是终守一职，因为在自己的业务领域中反复实践有助于成才。
The measurement of velocity of the jet flow field is carried out with the TSI-IFA300 constant temperature anemometer.
利用TSI-IFA300热线风速仪系统对致动器喷口外的流场进行了测量。
In the experiment of simulating electrostatic field in the field of constant electric current contact voltage between electrode and conduction paper is often neglected.
在用稳恒电流场模拟静电场的实验中，人们通常忽略了电极与导电纸之间的接触压降。
To obtain a constant gradient magnetic field outside unilateral nuclear magnetic resonance (NMR), optimal design method based on finite element method (FEM) and topology optimization is proposed.
为了在单边核磁共振仪器外产生梯度恒定的磁场，提出利用基于拓扑优化和有限元法的优化设计方法。
The formula of constant voltage and constant current field perturbation, modified G-L formula and the formula of electrical field perturbation evoked by sound field are derived.
文中证明了电导率变化引起恒流场和恒压场扰动的基本公式、修正g - L公式以及声场诱发电场扰动公式。
The speed, of response of the synchronous condenser is greatly influenced by the effective time constant of the field, which is typically 2-3 seconds.
同步调相机的响应速度受励磁磁场时间常数影响很大，时间常数一般为2—3秒。
The reason for Projective distortion that the amplification ratio is not constant but has nonlinear relation with pitch and tilt angles and field of view of cameras was found out.
通过分析该模型中物与像的对应关系，得出了射影失真产生的根源是光学系统放大率的不恒定，并与相机的外参数：倾角及视场的大小有着非线性的变化关系。
By means of study on velocity field constant in flue, a method used to measure average velocity of flue gas was presented.
通过对烟道“速度场常数”的研究，提出了利用速度场常数监测烟道烟气平均流速的方法，同时研制出速度场常数自动检测装置。
The multifunctional pump has many regulative functions, such as constant pressure, constant flow, constant power, and pressure-flow compound control, etc. It may be widely used in industrial field.
所开发的多功能泵具有恒压力、恒流量、恒功率及压力流量复合控制等调节功能，有着广泛的工业实用性。
That's the one constant in a field undergoing rapid change, as dentistry goes digital.
不过等到数字牙医时代来临以后，这种让人不愉快的局面马上会有所改善。
The idea of affine projection and data-reusing in adaptive filtering field is applied to the modified constant modulus algorithm (MCMA).
该算法将自适应滤波领域中的仿射投影和数据重用思想引入修正常模算法(MCMA)盲均衡器。
Theoritical analysis has shown that triangular singularity distribution has special advantages over the other ones(vortex ring or constant distribution) in the prediction of nonuniform flow field.
理论分析表明三角形奇点分布形态在非均匀流场计算中具有其独特的优越性。
Then, the structure and dynamic models of improved constant rotor speed control system using electric field method are proposed.
在此基础上，提出了改进后的球形转子电场恒速控制系统的结构和动态模型。
Uneven constant magnetic field could alleviate the deformation of neuronal nucleus and change of nuclear membrane structure induced by hypoxia.
非均匀恒磁场可缓解缺氧导致神经元的核变形以及核膜结构不光滑等现象。
The step through test and independent activity were used to observe effect of uneven constant magnetic field pole N and S on learning and memory impairment induced by hypobaric hypoxia .
用避暗实验法和自主活动法，分别观察了非均匀恒磁场N极、S极对急性低压缺氧引起的学习记忆障碍的影响。
An example is periodic motion, such as the precession of a particle with intrinsic spin and magnetic moment in a constant magnetic field.
一个例子是周期运动，如一个带有自旋和磁矩的粒子在恒定磁场中的进动。
An example is periodic motion, such as the precession of a particle with intrinsic spin and magnetic moment in a constant magnetic field.
一个例子是周期运动，如一个带有自旋和磁矩的粒子在恒定磁场中的进动。
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