高压

In this thesis, soft starter equipment realized by thyristors power transform circuit is studied. To improve equipment performance, we apply variable reactance technique to AC motor soft starter study. The high voltage AC working winding of reactance is in series with motor winding, while low voltage control winding and thyristors groupware with intelligent controller constitute close loop circuit. We adopt thyristor phase control voltage-regulator mode to control low voltage winding, then control the reactance of high voltage winding, and then arrive at the goal-control the current and voltage of motor AC to realize motor soft starting.

本文研究由晶闸管功率变换电路实现的软起动器装置，为了提高装置的性能，将可变电抗技术应用于交流电机软起动研究中，电抗器的高压交流工作绕组与电动机绕组串接，低压控制绕组与带智能控制器的晶闸管组件组成闭合回路，采用晶闸管相控方式控制低压绕组，从而控制高压绕组的阻抗，以达到对电机电流与电压的控制，最终实现电机软起动的目的。

It can provide high pressure transportation of high-pressure (0-17MPa), high-efficiency, small involume, low-energy and suitable for low/high temperature, flammability, explosion, strong causticity, including solid granule serosity, etc.

公司系国内第一家专业从事ZG系列多柱塞高压隔膜泵的研究开发，设计制造及销售服务，可为广大用户提供高压力(0-17MPa)、高效率、体积小、低能耗的可适应低/高温，易燃，易爆，强腐蚀，含固体颗粒浆液等的高压输送，并保持无泄漏。

Although the high-pressure boiler tube coating is still mainly small-bore applications, but the coating of large diameter high-pressure boiler tubes start the past two years has been widely used.

虽然目前涂敷高压锅炉管仍然是以小口径应用为主，但是大口径涂敷高压锅炉管近两年也开始得到了广泛的应用。

On the basis of the conventional design means of DC side filtering equipments in HVDC transmission system, multi-object programming optimizing method with two objects: investment and operation fare and the constrain condition of equivalent interfering current limit is presented to get a generally optimum scheme for DC side filtering equipments including smoothing reactor, filters and capacitor at neutral bus in this paper.

本文基于高压直流输电系统直流侧滤波装置传统的设计方法，提出了以投资费用和年运行费用为目标、等效干扰电流满足标准要求为约束条件的多目标规划设计方法，对高压直流输电系统直流滤波装置(包括平波电抗器、直流滤波器、中性点冲击电容器)进行综合优化设计。

It was observed in this pressure range that sodalite underwent a phase transition at about 3 GPa and that the d- 222 value showed an abnormal increase when the pressure was higher than 6.3 GPa. The experimental results are explained on the basis of the pressure effects upon the cage and tunnel structures in sodalite.

对方钠石在高压下相变以及d222增大的原因进行了分析，认为方钠石结构中存在着充填大阳离子的多面体笼和孔道，高压下这些笼和孔道容易扭曲变形，从而造成结构的改变。

In situ high-pressure energy dispersive X-ray diffraction experiments on framework silicate sodalite were carried out by using the diamond anvil cell device with a synchrotron radiation source at Beijing Synchrotron Radiation Facility.

在室温下使用金刚石对顶砧高压装置和同步辐射光源，对架状硅酸盐矿物方钠石进行了原位高压X射线衍射实验，最高压力达到17.4GPa。

The method was used to many applications such as industrial heating and speed control of induction motors.On the basis of the advantages and disadvantages of the methods of the high-pressured sodium lamp dimmer in both here and abroad, a new scheme is proposed.

并在研究和比较了国内外目前在高压钠灯调光方法的优缺点的基础上，提出了一种在目前的高压钠灯的调光系统中还未被使采用过的、有别于传统方法的、基于谐波分析理论和自动控制理论的实施方案。

With the technical development of active power factor correction, some circuits in the ballast s and its operation are introduced, which have been used in high pressure sodium lamp.

针对荧光灯电子镇流器和高压钠灯电子镇流器中功率因数校正技术的发展，总结了典型的有源功率因数校正应用电路，分析了电路的基本工作原理，并在高压钠灯镇流器中得到了应用。

The Domistic Ballast and the Life of Compact Fluorescent Lamps;2. With the technical development of active power factor correction, some circuits in the ballast s and its operation are introduced, which have been used in high pressure sodium lamp.

针对荧光灯电子镇流器和高压钠灯电子镇流器中功率因数校正技术的发展，总结了典型的有源功率因数校正应用电路，分析了电路的基本工作原理，并在高压钠灯镇流器中得到了应用。

Various power fluorescence high pressure mercury lamp and high pressure sodium lamp can be used as light source.

灯具适用多种功率的荧光高压汞灯和高压钠灯光源，用户可配购本公司的隔爆型镇流器箱，本公司另备有专用的路灯灯杆供用户选用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。