查询词典 line pipe

Must not be smaller than the pipe size of the relief valve or have any reducing coupling installed in the discharge line.

不能小于安全阀的管道口径，也不能在排泄管上安装任何缩径管接头。

An explosion accident of check valve taking in vacuum pipe line was analyzed.

分析了真空管道止回阀发生的一起爆炸事故，认为其原因是止回阀外密封泄漏，且密封腔无安全装置，提出了相应防范措施消除了隐患。

In this article, a three-dimensional finite element model of four-branch-pipe-joint vacuum transfer line is set up, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线五通管系的三维有限元分析模型。

The end of the line? said 4th Sun-she in a nasal tone,with the long Chinese pipe still in his mouth.

嗣了吗？四孙舍嘴里衔着旱烟管，带着鼻音的说。

Companies continuously improve existing products in the technical level, has started the introduction of foreign technology, the development of polyvinyl chloride pipe production equipment, aluminum veneer production line, with no air shaft plate, floating roller tension, automatic AC inverter Technology, PLC touch-screen control of the domestic first-class new generation of concave printing presses.

公司在不断提高现有产品技术水平的同时，已经着手引进国外技术，开发聚氯乙烯管材生产设备，铝单板生产线，无轴气动装板、浮辊张力、全自动交流变频技术、PLC触摸屏控制等新一代国内一流凹印刷机。

By setting up the mathematical models of the regulating objects （combusting heat transfer, heat utilization and storage, superheater and main steam pipe line）, by combining heat transfer function of regulating system and by selecting method of setting PID accoding to set attenuation index object, the corrections among PID and pulverized coal＇s caloric values are found. Now the PID can be set according to caloric values of the pulverized coal burned in the unit and the automatic control can be put into operation.

通过建立调节对象四个环节（燃烧传热过程、热量的利用和储存过程、过热器、主蒸汽管道）的数学模型，结合调节系统的传递函数，选用按给定衰减指数设定PID参数的方法，找出PID参数与煤粉热值的关系式，最终达到在机组燃烧不同热值的煤粉时可依据该方法设定不同的PID参数、并都能投自动的目的，从而有利于提高机组的稳定性，并可节约煤粉。

These prove that the transfer function we deduce can describe the trends of pipe-shell heat transfer organization.The quality of steam generated from the first flash recipient is the main guide line for steam generator.

根据热平衡理论建立闪蒸室动态过程的仿真模型，应用整段线性化的简化方法得到闪蒸室产生蒸汽量与补给水流量、饱和器加热量的传递函数。

The standard flow channel valve can be used: the United States NIBCO T-580-70 Valve; S-580-70 Valve (2), available to full-flow channel valve indented Path: The United States NIBCO T-585-70 Valve; S-585-70 Valve 2, check valve: Path DN65 valve should be used the following Swing Y-shaped structure, and in accordance with the United States valves and pipe fittings Manufacturers Standardization Society MSS-SP80 standards of manufacture, working pressure 125 lbs class, in line with the United States Society for Testing and Materials Standard Bronze ASTMB62 valve, configuration, Teflon flap valve seat, or seat configuration flexibility of the spring-driven lift-type check valve.

可采用的标准流道阀门：美国尼伯科T-580-70球阀；S-580-70球阀（2）、可采用的不缩径全流道阀门：美国尼伯科T-585-70球阀；S-585-70球阀 2、止回阀：通径DN65以下的止回阀应该采用Y形旋启式结构，并按照美国阀门和管件制造商标准化协会MSS-SP80标准制造，工作压力125磅级，符合美国材料试验协会ASTMB62标准的青铜阀体，配置聚四氟乙烯阀座阀瓣，或配置弹性阀座的弹簧驱动升降式止回阀。

Note: The potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater.

注：饮用水膨胀罐应该安装在热水器的供水端的冷水维修管道上。

FZV service is to meet the pipe line's condition and customer' s request, to provide our clients the best and competitive products and service, to improve the function of the products, and to assure the products' quality, Therefore, we have set up our products after service center, developed a joint venture factory in oversea, and are active to look for the cooperation and communication with the local customer and government, and build up a very good cooperation with the well-known international companies such as Shell, Aramco, PDO, PetroChina, NIGC, KNPC, Exxonmobil and so on.

为了满足管路工况对产品的使用要求，提供给客户最快捷和最经济的产品和服务，我们不断提高产品性能，寻找最有保障的产品服务通道。为此，我们成立了产品维修中心，在海外成立了合资工厂，积极加强与销售地用户和政府的沟通，并与Shell、Aramco、PDO、PetroChina、NIGC等世界知名公司建立了良好的合作关系。为客户负责，为社会负责，是方正公司不懈的追求！

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。