双曲面

The following two parts are mainly contained in the paper: simulations and researches on the detection of the narrow impulse and the locatio...

论文的内容主要包括两个部分：尖脉冲检测、双曲面交汇测深的仿真与研究和DSP的汇编软件实现。

For example, reflecting telescopes are still built with paraboloidal primary mirrors, which have interchangeable flat diagonal mirrors and hyperboloidal secondary mirrors, with a focuser installed both at the Newtonian focus and the Cassegrain focus.

例如，同样是抛物面反射望远镜，然而安装了可切换的45度反射镜与双曲面副镜（注：分别对应于典型的牛顿与卡塞系统），且在牛顿和卡塞焦点都装有成像设备。

A standard accessorial reflecting mirror was incorporated into the beam path of an interferometer to build up a autocollimating system for measuring the aspheric wavefront aberration of paraboloidal, ellipsoidal and hyperbolic mirrors with the method of aberrationless point.

为了检测抛物面、椭球面和双曲面镜，在干涉仪工作光路中加入一个标准辅助反射镜，组成自准直系统，采用干涉法中的无像差点法实现对非球面波像差的检测。

Quadrupole mass filter is a matured miniature mass spectrometer that has been widely used.

四极杆质谱仪是目前最成熟、应用最广泛的小型质谱仪之一。四极杆质量分析器通过在双曲面四极

Based on construction of steel roof truss of the Cultural Center project in Dalian Development Zone,construction scheme of high altitude assembly was adopted according to comparison and analysis of two schemes.

结合大连市开发区文化中心工程C区钢屋架结构的施工，通过两种施工方案比选分析，确定采用空中散拼的施工方案，并详细阐述了屋架双曲面钢箱梁安装顺序和施工工艺，同时介绍了箱梁、菱形节点块和屋架支撑杆的手工焊接工艺，采用超声波探伤进行内部缺陷的检验，并测量轴线与标高和下挠值。

First of all, the improving feeding helix can not only get material into the ball mill successfully, but also increase ventilated proportion; Secondly ,making use of all sorts of new scaleboards can reform the working condition of skive substance and raise the material adaptability; Third, separating storehouse board, have not only increased control material to flow, and balanced each storehouse smash the function of ability, but also realize thickness pellet grade role; Grind tail storehouse choose hyperboloid drum liner, in axial and circumference direction have incline curved surface, can not only increase steel ball lateral grade , but also still raise steel forge , steel ball grind efficiency.

进料口螺旋的改进，不仅解决了堵料现象，而且加大了通风面积；各种新型衬板的使用，对研磨体运动状态的调节以及对物料的适应性都有了较大的改善；隔仓板不仅增加了控制料流及平衡各仓粉碎能力的功能，而且可以实现粗细颗粒的分级作用；磨机尾仓选用双曲面衬板，在轴向和圆周方向均有倾斜曲面，不仅能够增加钢球的横向分级，还能提高钢锻、钢球的研磨效率。

The most important feature of this design is: Lord reducer is not a conventional double-bevel gear surface, but a spiral bevel gear.

本设计的最大特点是：主减速器不是采用传统的双曲面锥齿轮，而是采用弧齿锥齿轮。

The procedures used mathmatics establishment, used to complete the spiral bevel gear surface and quasi-two-tooth surface of the geometric design.

该程序用mathmatics编制，用来完成弧齿锥齿面和准双曲面齿面的几何设计。

An improved unwrapping processing method is brought forward based on forward mapping and the imaging feature of hyperboloidal catadioptric panoramic vision system.

本文根据双曲面折反射全景视觉系统成像特点，提出了一种基于前向映射的全方位图像解算的改进算法。

By deriving the model of image formation of central catadioptric cameras in detail,we have calculate the epipolar curve constraint on corresponding image points in the two panoramic images and analyzed the feature of epipolar curve s.

研究了由双曲面镜面与球面镜面共同组成折反射系统并结合普通透视摄像头所构成的一类特定全景视觉系统，推导了该全方位摄像头成像模型以及外极曲线的计算过程，分析了外极曲线特性，最后通过实验进行理论验证。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。