比较原理

In order to improve our CNC system to a higher level, an interpolation problem of circular in an arbitrary plane was also studied in the paper, where three kinds of interpolation algorithm were given, their feasibility were analysed and compared, and the best algorithm was obtained; In the end of this paper, a new concept of zero—following error position control was advanced, whose control principle and algorithm wre derived.

为使数控系统向更高档次发展，本文还研究了空间圆弧插补问题，给出了三种插补算法，通过分析比较，得到了最佳算法，并用汇编语言进行了可行性验证；在本文的最后，提出了零跟随误差位置控制的概念，并推导出了控制原理和算法。

This acticle discusses screen interception technology exploited by Visual Basic in fibra intertwist tension system ,makes a comparison with traditional way,and tells in detailed of the following ways about it\ s trait,principle,operating procession,and program,at last it gives the code.

探讨了在纤维缠绕张力制度软件中用 Visual Basic开发的屏幕截取技术，与传统的方法进行了比较，从其特点、原理、操作过程、及程序等方面进行了详细介绍，并给出了具体代码。

Aimed at low-SNR infrared images,the principle,invariant property and computational methods of Pseudo-Zernike moments are analyzed,and a method for low-SNR infrared target detection based on Pseudo-Zernike moments is proposed.

针对低信噪比红外目标图像，分析了伪Zernike矩的基本原理、不变性和计算方法，提出了低信噪比红外目标检测的伪Zernike矩方法，并比较了模板匹配、Hu矩、伪Zernike矩方法的目标检测效果。

The concepts of kicker design is analyzed, and the details on the design and working principle are presented in this paper.

对踢球器的概念设计进行了分析，比较详细地说明了RoboCup小型足球机器人的具体设计和工作原理。

Keywords Kneader;operating principle;performance;comparison;reconstruction

混捏机；工作原理；性能；比较；改造

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed. Finally, the calculated figure was compared with the ideal paraboloid and comparison shows that more accuracy would be achieved by multi-electrode control.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

The method based on law of cosines of radiation. Used arrayed optical receivers to collect LASER energy. Because of the different between AOA and axes of optical receivers, the energy between each receiver was corresponding different.

该方法采用阵列光学头接收光能量，利用入射光束与不同光学通道夹角不同，接受的能量则不同的原理，通过对它们的比较来确定入射光束的角度。

In this paper, a brief analysis of the mechanism of overhead insulating conductor broken by lightning was introduced, and some detail information about the structure and principle of some anti-lightning broken device, such as over-voltage protector, arc-protection hardware and FLC-B lightning-protection hardware. And some electrical tests and analysis were done to these devices, after multi-comparison of those devices' performance, some specific measures are proposed against lightning broken.

本文简要分析了架空绝缘导线雷击断线的机理，详细介绍了过电压保护器、防弧金具和FLC-B型防雷金具等常用防止架空绝缘导线雷击断线装置的结构和工作原理，并对这些装置进行各种电气试验与分析，综合比较各种装置的性能之后，提出了10kV架空绝缘导线防雷击断线的具体措施。

The theory of lignocellulose pretreatment was explained and also the pretreatment methods were classified and compared with each other.

解释了木质纤维素预处理的原理，并对各种预处理方法进行了分类和比较。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。