查询词典 flutter valve

The study shows that through choosing the characteristics of the feedwater valve and throttle valve in the equipment, the shifting run of turbine pump, can realize the pressure drop of the feedwater valve invariableness, which can reduce the energy loss and improve the control characteristics of the feedwater system.

本文的研究表明，在核动力装置二回路给水系统中，通过选定节流阀和给水阀特性，由水泵变速运行可以实现给水阀两端的压差恒定，大大改善了给水系统的控制特性。

Jacketed valve:This valve is design incorporates a so-called jacket around the valve body.

夹套阀：这种阀的设计，是将一个所谓的夹套套在阀体上。

"The Micro 10 rocker isolation valve represents the next step in miniaturized valve technology," said Robert Kemple, vice president, sales and marketing, ASCO Valve.

& &10摇杆的微型隔离阀代表了微型阀技术的下一个步骤，罗伯特说Kemple，副总裁，销售和营销，ASCO会议阀门。

This procedure requires the operator to close the valve as tightly as possible by hand, thenvent the pressure in the valve outlet and reclose the valve immediately.

这个程序要求操作者用手尽可能紧的关闭阀门，排出阀门排气口的压力，接着马上重新关紧阀门。

This procedure requires the operator to close the valve as tightly as possible by hand, then vent the pressure in the valve outlet and reclose the valve immediately.

这个程序要求操作者用手尽可能紧的关闭阀门，排出阀门排气口的压力，接着马上重新关紧阀门。

This procedure requires the operator to close the valve as tightly as possible by hand, then vent the pressure in the valve outlet and reclose the valve immediately. This is

这个程序要求操作者用手尽可能紧的关闭阀门，排出阀门排气口的压力，接着马上重新关紧阀门。

Increased valve spring stiffness is to increase the stability of a simple common methods, such as the range of 20 ~ 100KPa spring spring into 60 ~ 180KPa's big spring stiffness, using this method is mainly brought locator valve, otherwise, the use of valve to reprovision on the locator.

增大弹簧刚度是提高阀稳定性的常见的简单方法，如将20～100KPa弹簧范围的弹簧改成60～180KPa的大刚度弹簧，采用此法主要是带了定位器的阀，否则，使用的阀要另配上定位器。

This essay will remark on auto air-condition noise problems through studying expansion valve. The main reasons incurred noise are two, one is vibration, which is from big air bubble caused by the refrigerant flows through expansion valve. Another is resonance, which is from engineering working itself. So, the two methods for eliminating noise are found. On one hand, through increasing damp to weaken resonance. On another hand, through taking off air bubble to eliminate vibration. The essay presents method of solving noise through improving expansion valve and elaborate the disadvantages caused by these solvement.

本文从膨胀阀的角度去考虑解决汽车空调异响问题，认为产生异响的主要原因是制冷剂流经膨胀阀节流部时有大气泡存在引起振动与汽车发动机共振造成，从增加阻尼块来减振和分解大气泡来消除震动等两方面提出解决方法，并对此方法造成的不利方面也进行了阐述。

The Company are the production of forged steel valve series of professional firms, using international standards and national standards, a modern scientific management as the goal, actively introduce advanced technology and equipment, the use of CNC machining to ensure accuracy and interchangeability Products , valve sealing the introduction of automatic welding equipment and high temperature wear-resistant cobalt-base Stellite hard alloy material, the valve can be assured that the main components and quality of physical and chemical properties.

本公司是生产锻钢系列阀门的专业公司，采用国际标准和各国家标准，以现代化科学管理为目标，积极引进国内外先进技术和设备，采用数控机床加工，确保产品精度与互换性，阀门密封采用自动堆焊设备和耐磨高温的司太钴基硬质合金材料，确实保证阀门主要零件的理化性能和质量。

Based on the characteristics of the chip we designed to control the hydraulic servo system for the core of this system, control circuit valve using digital potentiometer, through programming, automatic regulation resistance, high AD698 and accurately by an LVDT valve mechanical displacements converted single polarity dc voltage, through the simulation, the design of PID algorithm of closing valves, the degree of control system and superordination machine, realize the valve control circuit of adjustment and control.

基于上述特点我们设计了以单片机为控制核心的液压伺服阀控制电路，本系统采用数字电位器，通过编程自动调节电阻值，采用AD698 与LVDT 配合，高精确地将阀门的机械位移转换成单极性直流电压，通过模拟PID调节算法，设计实现了对阀门开合程度的控制，该系统与上位机进行通信，实现对阀门控制电路的调试及监控。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。