揭示了坐标几何学;,当你在学校学习X轴和Y轴的时候,它们被叫作笛卡尔坐标，那就是以他的名字来命名的。
He discovered co-ordinate geometry; so in school when you are learning about x and y coordinates and they were called Cartesian coordinate that's after Descartes.
本文用几何光学描述了离轴探测调焦误差信号与系统参数的关系，并与实验结果进行了比较。
Characteristics of the defocusing error signals are expressed in the terms of an off-axial detection system by geometric optics. The results are compared with experiment.
这个平衡轴摄像系统运用简易几何学很容易的说明了两图像中物体顶点像素问题。
This simplicity of the epipolar geometry of the camera system with parallel axis allows effortless identification of the top most points of object in two images.
应用计算几何技术来决定优化的刀具定位和刀具姿态以实现环形刀的5轴自由曲面数控加工。
A method is presented by using computational geometry techniques to determine optimal tool position and orientation for 5-axis machining with torus end-mill.
本文提出了一种球面上基本几何元素的园弧投影变换方法，并建立了三轴及对应的二轴园弧投影体系。
This paper presents a method of arc projective transformation of the fundamental geometric elements on a sphere, and sets up an are projective system for three axial and two axial correspondently.
定义了长轴陷阱及陷阱深度，用它们刻划了该算法迭代过程中锯齿现象的几何特征。
The definitions of long axis trap and trap depth are given. The geometrical feature of the algorithm is characterized.
把几何信息与非几何信息联系起来，丰富了设计图的信息含量，提高了轴类零件的设计效率。
Connecting geometric information with non-geometric information, so the information content of design drawing is enriched, and the efficiency of shaft-type parts design is raised.
本文推导了柱单元受大轴力和单元变形过大两种情况下的单元几何刚度矩阵。
In this paper, a improved geometric stiffness matrix of a column element considering axial force-lateral displacement effects is derived.
通过研究引信和钟表小轴类零件基于知识和实例的表示方法，建立了面向对象的零件几何、工艺特征信息描述方法。
Studying representation method of fusee and small spindle part of the case-and-knowledge-based, the described method of objected oriented of geometry feature and process feature information is built.
结合物理学的基本原理和几何光学的基本规律以及光度学的基础理论等三方面，研究了单纤维在平行均匀光束垂轴入射时的光学性质。
On the basis of theories of physics, geometrical optics and photometry, the optical properties of collimated light beam incident upon single fiber perpendicular to the fiber axis are studied.
下一步是通过这些线来创建几何体，因此我只是挤压了Z轴上的线，并将基础的网格布尔体系化。
Next step is to create geometry from these lines so I just extruded the lines in Z axis and booleaned the basic mesh.
文章对其几何尺寸与平衡参数进行了优化设计，证实该机型曲柄轴的均方根扭矩比异相型减少了31.2％，最大扭矩减少了35.3％，平衡效果显著。
The geometric dimensions and balance parameters of the beam pumping units are optimized. As a result, Me is re- duced 31.2% and Mnmax is reduced 35.3% than phased balance.
结果表明焊接接头裂端应力三轴性随焊缝和母材匹配性质及裂纹几何不同而变化。
The numerical results show that the stress triaxiality varies with the mis matching mode and crack geometry of welded joints.
利用近轴几何光学模型推导出焦距标度，这些焦距标度都具有良好的单调性和单峰性。
The focus measures are drived from the paraxial geometric optics model. All these focus measures have good monotonicity and unimodality.
本文引入了几何非线性关系和等效线弹簧模型对含裂纹的弹性轴弹性盘转子系统进行非线性动力学分析。
Non-linear dynamics characters of a rotor system for an elastic shaft-disk with a crack are examined by introducing the geometric non-linearity and equivalent line-spring model.
扼要介绍了三轴不对称卷板时，根据被卷钢材的几何参数、力学参数来计算卷制工艺参数。
This paper introduces the parameter calculation of plate bending with asymmetric three axles according to the geometric parameters and mechanical parameters of the steel to be rolled.
我认为，实际发生了什么是，模型的几何是翻在Z轴。
I think what's actually happening is, that the model's geometry is flipped on the Z axis.
因此在对悬索桥作施工全过程动力特性分析之前，必须首先计算各状态的主缆轴力和几何形状。
Therefore, the cable tension and shape have to be calculated for each construction stage before analyzing its dynamic behaviour.
其次，讨论了典型的轴对称形式的初始几何缺陷对复合材料圆柱壳轴压稳定性的影响。
Secondly, the influence of typical axisymmetrical initial geometrical imperfections on the stability of composite cylindrical shells under axial compression is discussed.
根据被加工的曲面特征，通过计算机模拟其加工过程，来寻求最优的刀轴运动轨迹和刀具几何特征参数。
The paper features an attempt to find the optimal axle moving locus of cutting tools and geometric parameter, based on the surface features and by means of a computer simulate machining process.
点和其他几何助手，比如像轴、坐标系统等也进行了模型化处理。
Points and other geometric helpers like axes, coordinate systems etc. are also modeled.
基于三轴数控机床的空间误差模型，使用三维步距规识别数控机床空间几何误差。
Based on error model, the three dimension-stop gauge was used to identify the space errors of CNC machine tools.
由于轴的几何形状及支承方式的复杂性，转轴临界转速计算中的许多问题，是困难的问题。
Because of the complexities in geometric forms of the axle and the supporting Patterns, most of the calculations of the critical speed of turning axle are difficult.
指出了渐开线螺旋花键轴几何尺寸设计时应注意的问题。
The points for attention in designing the serration axle are pointed out.
颅骨图像在几何上具有对称性特征，根据转动惯量在几何对称性对象上所具有的良好性质，提出一种改进的计算对称轴的算法，该算法利用计算机语言编程实现。
A modified computing symmetry axes algorithm is proposed for the geometry symmetry good property of skull image and the moment of inertia on the symmetry objects.
并且，在该小行星的形状取三轴椭球体和在几何反射定律等假定之下，给出了关于该小行星的光度变化理论。
A new photometric theory of Eros based upon a three-axis ellipsoid model at full phase obeying Lommel-Seeliger 's law is presented.
利用几何光学的光线追迹法形象地描述了轴棱锥透镜系统产生局域空心光束过程。
Theprocess of the bottle beam generated from an axicon-lens system is described by a novel method based on the ray-tracing.
如果不是这样，我只是翻转Z轴的几何形状。
如果不是这样，我只是翻转Z轴的几何形状。
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