查询词典 Cassegrain

In the laser engineering system,a beam expander and an annular aperture were taken as the equivalent of the Cassegrain telescope system.

在激光工程系统中，把卡塞格林望远系统等效为一个扩束器和环形光阑的组合形式，研究了激光束的光腰半径与卡塞格林望远系统的参数匹配问题。

The simulated analysis results of the hybrid method are in good agreement with the results presented in the literature, which shows that the method is feasible and accurate. Finally, the hybrid method is used to analyze a side-fed offset Cassegrain antenna, and its radiation characteristics as well as its gain under wide-angle scanning are given.

与文献中已有结果的比较表明，文中的混合方法是可行和精确的，并采用该混合方法对一个侧馈偏置卡塞格伦天线进行了分析，给出了该天线的宽角扫描辐射特性和增益。

For testing the concave ellipsoidal mirror of Three Mirror Cassegrain optical system, a slab compensated auto-collimation method is suggested.

针对TMC光学系统凹椭球面主镜的检验，本文提出了一种平板补偿的自准检验方法。

The designed method of optical imaging system and optical scanner have been described. This optical system consists of two aspherical mirrors i.e. Cassegrain system, the designed datas have been given.

描述了光学成像系统和光学扫描系统的设计方法，光学系统是由两个非球面反射镜所组成，并给出了光学系统设计的各种数据。

Then with the intensity distribution being the optimization criterion,a new effective optimum way to design the structure of the Cassegrain reflective system is introduced here.

据此，本文提出了以该衍射效应作为卡塞格林反射系统结构优化设计的目标函数，该方法具有直观和量化的优点。

It also fits well with a system design where the instruments must be mounted on the telescope (e.g. mounting at the Cassegrain focus), or exposed to the external environment - since the instrument is static, it can be more easily enclosed.

它很好也符合在望远镜仪器的系统设计(即在卡塞格伦焦点的架置必须登上)，或者暴露在外部环境-，因为仪器是静态的，它可以更加容易地被附寄。

By detailed analysis of Cassegrain optical antenna in partial axis situation,the expression of the area of the receiving spot and the power decline curve are obtained for different deflection angles.

通过对偏轴下的卡塞格伦光学天线系统的分析，得到了不同偏转角所对应的接收光斑面积表达式和功率衰减曲线。

The results of the design show that DOE has a great effect on ameliorating the field of view of the Cassegrain optical system. The design scheme reduces the demand fur high technical levels and cost, and has a compact structure and better aberration char acter.

设计结果表明，衍射光学元件对于改善卡塞格林系统的视场具有重要的作用，此设计方案降低了对加工工艺的要求，大大降低了成本，结构紧凑且具有良好的消像差特性。

And, four kinds of typical reflecting systems were discussed in detail. Comparing the results, it is found that the angular blur spots in a Dall-Kirkham system and an inverse Dall-Kirkham system are at the same order of magnitude, which is almost ten times of a Cassegrain system′s.

详细讨论了四种典型的反射系统，Dall-Kirkham系统和反Dall-Kirkham系统的弥散斑角宽尺寸在一个数量级上，大约为卡塞格林系统的十倍。R-C系统的弥散斑角宽最小，几乎是卡塞格林系统的十分之一。

He used an SBIG STL-11000M CCD camera at the f/3 prime focus of a 16-inch Cassegrain reflector for a total exposure time of 40 minutes.

他在一台16吋卡塞反射镜f/3焦比的主焦点上装置了一个***CCD，用于总计40分钟的曝光。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。