蒸汽

In this thesis the development status of MHD power generation technology is reviewed, and the key points constructing a MHD-steam combined cycle are investigated. A kind of flow train of coal gasified MHD-steam combined cycle system is put forward, which is different from previous ones. In this scheme one part of the high temperature flue gas out of MHD generator channel is utilized to gasify the coal, then the clean syngas is produced in the tail gasifier and the energy of high temperature flue gas is used effectively.

本论文评述了磁流体发电技术的发展现状，分析了磁流体—蒸汽联合循环发电系统构成的问题，提出了一种不同于前人研究的尾气煤气化磁流体—蒸汽联合循环的流程方案，该系统利用磁流体发电通道出来的尾气的一部分进行煤气化，这样既生成干净的燃料混合气体又利用了高温尾气的能量。

There was an increasing demand for engine power due to industrial development. As early as the 2nd century BC, the ancient Greeks invented an engine that was powered by the reaction from spurting steam; in 1690, the Frenchman Barben invented the first piston steam engine. On the basis of his predecessors' work and with his own hard work and numerous trials and failures, James Watt invented the steam engine with connecting rod, flywheel and centrifugal speed governor in 1782.In 1784, the British government granted a patent to James Watt for producing steam engines, which signified that man had entered the age of the steam engine and also significantly expedited the beginning of the Industrial Revolution in 18th century Europe. By the 1830s, steam engines had been widely used in various sectors such as textile, metallurgy, coal mining and transportation; for example, the American Robert Fulton invented the steamboat and the Englishman George Stephenson invented the steam locomotive.

随着社会的进步，社会由农业时代进入工业时代后，对全用手工操作已十分不满足，人们随着工业发展对动力的需求日益突出，瓦特在前人研究蒸汽的基础上，甚至早在公元前二世纪，古希腊人创造的一种利用蒸汽喷射的反作用的发动机，以及1690年法国人巴比首先发明第一台活塞式蒸气机等，刻苦钻研，反复实验，经历无数次挫折和失败，终于在1782年发明了具有连杆、飞轮和离心调速器的双动作蒸气机，使之成为了可以实用的蒸气机。1784年英国政府授予瓦特以制造蒸气机的专利证书，这标志着人类进入了蒸气机时代，有力地促进了欧洲18世纪的产业革命。

At the same time, the illogical parameters of steam-injected thermodynamic oil exploitation also increase heat loss.

同时，注蒸汽过程中不合理的注蒸汽热力参数，也会增加热损失造成不必要的浪费。

It has been employed for the analysis of heat supply unit operating characteristics.

介绍了蒸汽动力循环的局部定量分析方法——电厂蒸汽循环的函数与方程，并将之用于供热机组运行特性的分析，编制了通用的分析软件包。

In addition, the past 20 years, no change in the standard steam trap is still in use in the 20th century set the standard 80, test method does not improve, or replace with low parameters of high parameters, which parameters of the steam traps for high-test is unscientific.

除此之外，近20年来，蒸汽疏水阀的标准没有变化，仍然沿用20世纪80年代制定的标准，试验方法没有提高，还是用低参数替代高参数，这对于高参数蒸汽疏水阀的试验是不科学的。

In order to improve performance, as far as ISO-BARTMTFM paerboard Impregnator production enterprise KohlerCoating estimates, if you are using their new plastic unit, you can increase the line speed of about 40%, paste dasage more than can be reduced by 25%, and each steam room of steam pressure can be reduced by 50%~ 90%.

为了提高纸板性能，据ISO-BARTMTFM上胶机生产企业KohlerCoating估计，如果使用他们的新上胶单元，瓦线速度大约可以提高40%，浆糊用量能减少25%多，而每个蒸汽室里的蒸汽压力能减少50%~90%。

It analyzes the unreasonable way of using steam in iron and steel enterprises at present,namely the quality loss situation of temperature and pressure reduction,and proposes the improvable measures of combined heat and power .

以蒸汽利用的热力学第一、第二定律理论为依据，提出了合理用能所遵循的原则及其评价指标，分析了目前钢铁企业蒸汽利用的不合理方式，即减温减压的品质损耗情况，并就其提出了热电联产的改善措施。

A phase function of laser light scattering has been calculated based on Mie electromagnetic wave scatter theories aiming at case of undetermined enthalpy because of superposition between isotherm and isobar when low-pressure cylinder of turbine works in wetness vapor.

气相部分通过压力和温度的测量和理想气体状态方程计算出干蒸汽密度，从而计算出湿蒸汽的干度。

The osmotic coefficients and saturated vapor pressures have been calculated at the different temperatures .The experimental values of the osmotic coefficients for the Li_2SO_4-H_2O system were consistent with the values in the references. The results revealed the rules of the changing in osmotic coefficients and saturated vapor pressures with ion strengths and the molality fractions of Li_2B_4O_7 at different temperatures. The isopiestic equilibrium molalities were correlated by using the modified and the extended Zdanovskii rules for non-ideal mixtures, and obey well the Zdanovskii rules. The ion interaction parameters of Pitzer model have been determined by using the two methods for Li_2SO_4-Li_2B_4O_7-H_2O at 298.15K system.

本文计算了不同温度下该纯盐体系和混合盐体系的渗透系数和饱和蒸汽压，并将298.15K下的纯盐溶液渗透系数的实验值与文献值进行比较，取得了相一致的结果；揭示了不同温度下渗透系数和饱和蒸汽压随离子强度及Li_2B_4O_7质量摩尔浓度分数yb的变化规律；本文用Zdanovskii规则修正式和扩展式关联了298.15K下该混合盐体系的等压平衡浓度之间的关系，计算结果表明用这两个方程可以描述该体系在全浓度范围内的等压平衡浓度间的关系。

Livingston made a lot of steam with his brother-in-law, inventor John Stevens, when they experimented with steam navigation.

利文斯敦在蒸汽方面投资甚多，他的妻舅，约翰史蒂文生，发明家，任何有关蒸汽的实验，都由他资助。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。