蒸汽动力

In this case, the power of steam condensation evaporate again be used as a dynamic medium.

在这种情况下，动力蒸汽冷凝后再次蒸发被利用作为动力介质。

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。

Water boiler water is in a certain temperature and pressure produced by steam heating steam, heat and power as the medium.

锅炉用水是将水在一定的温度和压力下加热产生蒸汽，用蒸汽作为传热和动力的介质。

In addition, boilers and other industrial development has a very close relationship, such as petroleum chemical enterprise of waste heat boilers, steam gas pressure fuel plant in nuclear reactor engineering of boiler and steam generator, etc.

此外，锅炉还和其他工业部门的发展有着十分密切的关系，如石油化工企业中的废热锅炉，蒸汽燃气联合动力装置中的压力燃料锅炉以及核反应堆工程中的蒸汽发生器等等。

Bleached oil is distillated in packed column as film,whereas there is oil level in plate column ,so the steam consumption of packed column is less than that of plate column .

对填料塔和板式塔脱臭工作原理进行了分析，填料式脱臭塔相对板式塔由于油在塔内呈膜状蒸馏，而无油位的存在，故需要的汽提蒸汽和抽真空用的动力蒸汽较少，仅为板式塔的30%左右，因此填料式脱臭塔的炼油成本很低，是一种理想的脱臭节能设备。

The mathematical model of complex countercurrent multi-effect evaporation with condensed water flash is established, which aims at minimum annual cost (including cost of fresh vapor, vacuum pump power, evaporator, maintenance and depreciation).Based on such decisive variables as the pressure of fresh vapor, the pressure of condenser and heat-transfer mean temperature difference of vari-effect,the model is solved by the complex method,Lagrangian multiplier method, iteration method and matrix method.The practical example indicates that the influence of the pressure of fresh vapor, the pressure of condenser and flash of condensed water on the optimum design results is notable.

建立了带有冷凝水闪蒸的复杂逆流多效蒸发系统优化设计的数学模型，该模型以整个蒸发系统的年总费用(包括加热蒸汽年费用、真空泵年动力费用以及蒸发器和辅助设备的年折旧维修费用等)最小为优化目标，以生蒸汽压力、冷凝器真空度及各效有效传热温度差为决策变量，提出一种新算法———复合形法结合Lagrangian乘子法、迭代法和矩阵法求解模型。

Livingston also supported Robert Fulton, whose steamship, Clermont, named for Livingston's estate in New York, became the first successful steam-propelled vessel.

他也金援罗伯富尔顿，由他所设计的蒸汽轮船，克尔蒙特号，就是以利文斯敦在纽约的财产命名，是第一艘成功靠蒸汽为动力的轮船。

Steam still provides power ,of which electricity is the obedient carrier , for it is

蒸汽仍旧提供动力，而电则是输送动力的顺服载体，因为电能够把任何数量的动

In the steam injector with pressure-gain, the water gains pressure by the power of steam. The outlet water pressure is higher than the inlet steam pressure.

增压引射器利用蒸汽作为动力使水增压，让出口水的压力超过入口蒸汽的压力。

Based on the thermodynamic principle and calculation model of double-region-heating steam wetness probe, according to the typical operating condition of steam turbine,the water drop vaporization length in the double-region- heating steam wetness probe has been numerically calculated.

概述水蒸汽作为1种常用工质，广泛应用于火电、核电、船舶、石油等行业。水蒸汽在热能动力装置中受外界条件影响，常会呈现不同的状态，其中之一就是饱和湿蒸汽状态，即干饱和蒸汽和饱和水滴的混合物。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。