查询词典 halfwave plate

The concept of topology optimization of truss structures with discrete variables including two kinds of variables and the relative difference quotient algorithm for discrete optimization are extended to the topology optimization of plate and shell structures composed by plate and shell elements.

将包含两类变量的桁架结构拓扑优化设计的概念及求解离散优化的相对差商法进一步推广到由板壳单元组成的板壳结构的拓扑优化，建立了包含两类变量的板壳结构拓扑优化设计模型，并采用相对差商算法进行求解。

Based on the theories of the first two chapters, chapter 5 introduces the theoretical foundation and method of the software design of the license plate recognition system in detail. In this system, a license plate is fixed in a position and cut apart by verge examination based on the differential operator and threshold algorithm. Then outline method and projection method are used as methods of characteristic extracting, lastly neural network is used as a method to recognition the single character.

第五章是在前两章的理论基础上，详细介绍了车牌识别系统软件设计的实现方法和实验结果，应用图像分割的理论对车牌进行边缘检测和提取，利用轮廓和投影的方法提取字符的特征，最后用神经网络的方法对所得字符进行识别。

GEA Ecoflex is the direct successor to the company of Eduard Ahlborn that was pioneering in the invention of plate heat exchangers in 1928.Since 1995 it is the competence center within the GEA Group for gasketed, brazed and fullywelded plate heat exchangers.

GEA Ecoflex前身为Eduard Ahlborn公司——世界第一台板式换热器的发明者。1995年起，它是GEA集团中生产密封圈式，钎焊式，和全焊式的板式换热器的核心。

Based on analyzing the advantages and shortcomings, especially the membrane effects, of X steel plate yielding energy dissipator, and combined with the mechanism characteristics of Pall frictionalenergy dissipator, a composite steel plate yielding energy dissipator has been developed. Then the hysteretic behavior of CSEDOR has been tested.

本文在充分利用钢板屈服耗能器性质稳定、耐久性好等优点的基础上，针对x形钢板屈服耗能器中存在的薄膜效应，结合Pall摩擦耗能器独特的构造特点，提出了工程可用的组合钢板屈服耗能器，并进行了这种耗能器的滞回特性试验和疲劳性能试验。

Remote Control Toys major producers of electronic boards, and voice electronics board such as: remote control cars launch and receive board, mini remote control cars launch and receiver plates, the proportion of remote control cars launch and receiver plate, infrared battle tanks fired and receive board, remote control aircraft diving boat launch and receive board, gyro plate, etc. Our customers can also request for custom design, custom-made a variety of integrated electronic board, but also welcome to sample processing, ordering.

主要生产遥控类玩具的电子板以及语音类电子板如：遥控车发射及接收板，迷你遥控车发射及接收板，比例遥控车发射及接收板，红外对战坦克发射及接收板，遥控飞机潜水艇发射及接收板，陀螺板等等我司也可按客户要求为客户设计，定做各种集成电子板，同时也欢迎来样加工，订货。

The influence of different direction between plate cylinder and doctor blade,and different plate cylinder speed on dot gain in gravure printing was discussed.

主要研究了凹版印刷采用刮墨刀与印版滚筒相同和相反方向以及不同印版滚筒速度对网点增大值的影响。

In an electromagnetic lock a metal plate is attached to the door and an electromagnet is attached to the doorframe opposite the plate.

电磁锁在一个金属板连接到门，电磁铁连接到对面的板门框。

In recent years the company has developed a CNC cutting plate machine, bending machines, rapid double-action plate tensile hydraulic machine, and other high value-added high-tech products, products for the upgrading of enterprises laid a foundation.

公司近几年来又开发研制了数控剪板机、折弯机、快速双动薄板拉伸液压机等多种高附加值的高新技术产品，为企业产品的更新换代奠定了基础。

In order to compensate for the difference in the height of the cold end center section and the hot end center section and the resulting difference in the distance between the hot and cold center section and between the hot and cold connecting plate duct assemblies, the main support pedestal panels include offsets which extend downwardly along the sides of the cold end center section to meet with the cold end connecting plate duct assemblies.

为了补偿冷气端中心部分与热气端中心部分的高度差，以及由此带来的热气和冷气端中心部分的距离差以及冷热气端连接板管道系统间的距离差，主承重支座板上有一偏移量，它沿着冷气端中心部分的侧面向下延伸直到与冷气端连接板管道系统相连。

This paper,on the base of research of applied technology,describes the concept of optical dry plate and plate making film .

本文从应用工艺研究出发，阐述了光学干版和制版软片的概念、照相制版原理，性能以及制版工艺。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"