查询词典 circular current

We made an experimentally and theoretically research on SRS at low temperature (about 80K-190K) in highly single mode circular optical fiber. The experimental apparatus is designed and the principle of experiment is given. The SRS in highly single mode circular optical fiber is measured at different temperature. A series of SRS spectra is get in low temperature. On base of the spectra, we get a curve of the frequency shift and the half breadth with the temperature fluctuation.

对石英系圆芯光纤在低温下(80K-190K)的受激喇曼散射进行了初步的实验研究，设计了实验装置，给出了实验原理，在不同温度下对单模圆芯石英光纤的喇曼散射进行了测量，得到了在低温条件下喇曼散射的一系列光谱图，得出了喇曼谱线的频移、半宽随温度变化而变化的曲线。

Formerly JINYUN Wangshi Tool Factory is a professional production of various specifications of high-speed steel circular saw blades, pull a knife, saw blade milling cutter, cutter blade on three sides, high-speed steel lathe tool, the insert tooth circular saw blade, rubber blade, blade of paper with a saw blade and the kinds of non-standard custom-made knives, cutting tools; with advanced production and testing equipment, perfect technology management, technical force is abundant.

浙江阿波罗工具有限公司是一家专业生产各种规格的高速钢圆锯片、拉刀、锯片铣刀、三面刃铣刀、高速钢车刀条、镶齿圆锯片、橡胶刀片、分纸刀片、带锯条及定做各种非标刀具、刃具；具有先进的生产和检测设备，完善的技术管理，技术力量雄厚。

The method of obtaining time delay parameters with the reverse access channel is discussed. The modified algorithms of classic correlation methods of TOA estimation are proposed. Noncoherently combining algorithm and group coherent combining algorithm are given. They decrease the computational complexity and are more suitable for implementations in practical systems. The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation. Then the secondary search method is proposed, it can solve the matching issue of PN code in CDMA systems. The location algorithms based on LS are discussed; include circular trilateration with LS, hyperbolic trilateration with reference differencing, hyperbolic trilateration with sequential differencing and circular trilateration with TOA differences. The design and implementation of wireless location system based on TOA/TDOA in CDMA2000 systems are given. The location process is discussed, and the hardware and software implementation of TOA estimation are given. Finally, the wireless location system which uses TOA estimation and LS location algorithms above is tested in the real environment.

文中讨论了采用CDMA2000反向链路中的接入信道来获取时延的方法和过程；对TOA估计的传统的相关法进行了改进，提出了非相干合并相关法和分组合并相关法，减少了基于相关的时延估计算法的运算量，提高了算法的实用性，对算法进行了仿真和性能分析；采用边缘检测技术有效减少了TOA参数估计中的多径干扰，提高了时延参数估计的准确度；提出了一种TOA估计的二次搜索法，解决了多个定位测量单元同时进行TOA估计的PN码匹配问题，进一步了提高TOA估计的精度；在采用时延值的定位算法中引入了基于LS的圆周法、基于参考差的双曲线法、基于相邻差的双曲线法和基于TDOA的圆周法，讨论了各算法的应用条件，进行了算法性能的仿真分析；给出了CDMA2000系统中的TOA/TDOA的无线定位的系统方案和实现流程，并对TOA值估计算法进行了软硬件实现，还对采用TOA估计算法、LS定位算法和定位系统设计方案实现的定位系统的进行了现场定位性能测试。

Double circular arc gears are the complex special helical gear, and the design of the profile parameters is very flexible. Therefore, in this dissertation, it is very important to study the tooth profile parameters optimum on double circular arc gears by means of modern design method and computer technique.

双圆弧齿轮的齿轮参数对齿轮传动的动态传动性能产生重要的影响，由于双圆弧齿轮的轮齿是一个空间螺旋体，形状非常复杂，因而利用先进的设计计算方法和计算机技术对双圆弧齿轮参数进行研究具有特别重要的意义。

The shape is the combination of hexagon, circular, hexagon, triangle, hexagon and circular, shape from top down.

造型由上而下依序为六角形、圆形、六角形、三角形、六角形、圆形。

The test results demonstrate the circular polarization degree of output light of this optical circular polarization modulator is above 99.9%.

最后的光圆偏振度测试结果表明，本论文设计的调制器输出光的圆偏振度高达99.9%。

The test results demonstrate the circular polarization degree of output light of this optical circular polarization modulator is above 99.9%.

最后的光圆偏振度测试结果表明，本论文设计的调制器输出光的圆偏振度高达99.9%。来源：ABC6a论文网www.abclunwen.com

Studies on circular polarization fiber laser gyroA circular polarization fiber laser gyro is proposed.

圆偏振光光纤激光陀螺的研究提出一种圆偏振态工作的光纤激光陀螺。

This paper introduces the content of circular economy and its function in agriculture, and then analyzes the problems in the processes of circular economy development, and then put forward the necessary conditions for rural sustainable development from the view of government.

文章阐述了循环经济和农业循环经济的内涵，分析了我国目前在农业循环经济发展过程中存在的障碍因素，从政府的角度提出了发展农业循环经济所需提供的条件。

Mainly Feature: Use induction motor, so that the handy Circular Saw come true table Circular Saw 's function.

主要特征：由于采用感应电机，使手持式圆锯真正实现台式圆锯的性能。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。