器

Based on the needs of system control strategy and the output of the active inverter, a switch function method was adopted to build the average model of switch cycle for the active inverter in order to accurately analyze operation characteristic of active inverter, a feed forward and double loop control strategy is put forward, its double control includes a inductor current inner loop control and instantaneous voltage outer loop control.

中文摘要：为准确分析有源逆变器的运行特点，根据系统控制策略的需要，在考虑了有源逆变器输出的基础上采用开关函数法建立了有源逆变器的开关周期平均模型。提出一种前馈加双环控制的控制策略，它的双环控制包括一个电感电流内环控制和一个瞬时电压外环控制。

On the basis of measure principle of micro-power magnetic flux used by electronic integrator,a new kind of electronic integrator whose measurement sensitivity can reach as high as is designed to against the factor of integration drift,integration time constant etc which will effect Integration output error.

在将电子积分器应用于测量微磁通原理的基础上，针对影响积分输出误差因素中积分漂移、积分时间常数等的分析，设计了一种测量灵敏度为10-9C的新型电子积分器，并将该电子积分器应用于10-7～10-8C电量微磁通测量系统中。

Heating heating industry segment concentration Denmark top enterprises, APV company as the world's first invented the first type heat interchanger and promote fully automatic pump stations enterprises, will provide heat interchanger pump stations and for the assembly ;ABB owned companies will provide control, regulation, and the control system functional testing throughout the controller and transducer combination may both economic and efficient service to users; Denmark is the largest industrial companies in the world renowned manufacturer of control valves Danfoss Danfusi company will provide control valves and components; of the world's most famous construction company will provide pumps manufacturers Grundfos pumps, and water treatment equipment HYDRO-X companies.

供热部分集中了丹麦供热行业顶尖企业，APV公司作为世界上第一个发明板式换热器和最先推广全自动换热站的企业，将提供换热器并负责换热站的组装；ABB公司将提供拥有控制、调节、和检测全功能的控制系统，其控制器与变频器结合可既经济又高效地为用户服务；丹麦最大的工业品公司也是世界著名的控制阀制造商DANFOSS丹佛斯公司将提供控制阀及元件；世界上最著名的建筑业水泵制造商GRUNDFOS公司将提供水泵，并由HYDRO-X公司提供水处理设备。

The oil-quenching tank uses the steel plate structure, has the square shape, the rectangle, the circular, in the fuel tank the installment has the electric heating tube, outside the trough the installment has the oil pump, the stainless steel disc heat interchanger, the automatic oil constant temperaturecontrols the warm cabinet, its principle of work: When the work piece enters fuel tank quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating waterto put through automatically, carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decreasetemperature the goal.

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

The quenching oil trough uses the steel plate structure, has the square shape, the rectangle, the rotundity, the electric heating tube installed in the fuel trough , the oil pump and stainless steel disc heat interchanger installed outside of the trough, the automatic oil constant and controlling temperaturetank, its principle of work: When the work piece enters fuel trough quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating water to put through automatically,carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decrease temperature the goal. When the

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

The oil-quenching tank uses the steel plate structure, has the square shape, the rectangle, the circular, in the fuel tank the installment has the electric heating tube, outside the trough the installment has the oil pump, the stainless steel disc heat interchanger, the automatic oil constant temperature controls the warm cabinet, its principle of work: When the work piece enters fuel tank quenching to cause frequently the oil temperature elevates, the oil pump starts to work, sucks in the stainless steel disc heat interchanger fuel tank's in high temperature oil, this time cools the circulating water to put through automatically, carries on the heat transfer through disc heat interchanger's multi-layer stainless steel plate trough, causes the quenching oil which the process cools to return to the oil-quenching tank again, so moves back and forth the circulation, achieves the fuel tank to decrease temperature the goal.

淬火油槽采用钢板结构，有方形、长方形、圆形，油槽内安装有电加热管，槽外安装有抽油泵、不锈钢板式换热器，自动油恒温控温柜，其工作原理：当工件频繁进入油槽淬火引起油温升高时，油泵开始工作，将油槽内的高温油抽入不锈钢板式换热器，此时冷却循环水自动接通，通过板式换热器的多层不锈钢板槽进行换热，使经过冷却的淬火油再返回淬火油槽，如此往复循环，达到油槽降温目的。

The structural optimal design of the intercooler used in vehicles is described based on the genetic algorithm.

基于遗传算法对某车载空—空中冷器进行了结构优化设计，完成了优化设计程序，得到了中冷器芯体结构的优化方案，使优化后的中冷器散热能力在理论上最大提高了19.3%。

Our main products are radiator, intercooler, oil cooler, condenser and air-condition evaporator.

主要产品有水箱、中冷器、油冷器、冷凝器、空调蒸发机等。

The surface acoustic wave filter includes interdigital transducers and reflectors arranged on both sides of the transducer.

声表面波滤波器包括叉指型换能器以及位于该换能器两侧的反射器。

Thirdly, the data interfusion technology and automatic test is presented. And then, the theories of operation of the sensor and the hardware, the function descriptions of the software and the function and capability criterions of acapacitive intelligent differential pressure transmitter are presented.

在HBCC/HBYC系列智能差压变送器的研制中，研究了电容式智能差压变送器的传感器和硬件工作原理，软件的功能描述，变送器的功能和性能规范，以及软件设计的总体方案。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。