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Tests on RUNBACK operation status were carried out for 300 MW coal-fired Unit 3 in Zhanjiang Power Plant, and the effects of RB on some main operation parameters, such as combustion efficiency, drum water level, main steam pressure , main steam and reheat steam temperature, are analyzed in this paper.

对湛江电厂3号300MW机组进行了RUNBACK工况试验，并从运行角度分析了RB工况对锅炉燃烧、汽包水位、主汽压力、主汽温度等主控参数的影响，提出了改进意见，可为同类机组成功实现RB功能及同类情况下的事故处理提供参考。

Thermodynamic steam trap due to the work of power from steam, so steam waste is relatively large.

因热动力式疏水阀的工作动力来源于蒸汽，所以蒸汽浪费比较大。

The change of condenser steam flow field causes the changes of its heat transfer coefficient and the vapor lock,with the analysis on the change of the tube bundle arrangement with the alteration of the steam flow field,proposed the change scope of the correction factor of the arrangement of condenser tube bundle with the alteration of the condenser steam flow field.

凝汽器蒸汽流场的变化使其传热系数和汽阻发生变化，传热系数和汽阻的改变使凝汽器管束布置修正系数随着负荷变化，分析了管束布置修正系数随蒸汽流场的变化而变化，提出了管束布置修正系数随蒸汽流场变化的范围。

Be in in last few years in exploitation process, the pressure that note steam is ceaseless and elevatory, the index of performance of the equipment that note steam of the requirement is higher and higher also, inferior the critical boiler that note steam received wide application.

在近几年的开采过程中，注汽压力不断升高，要求的注汽设备性能指标也越来越高，亚临界注汽锅炉得到了广泛的应用。

Then the steam peeling principle is introduced, the structure design of steam peeler (includes main body, external condensate removal system,steam expansion vessel, electrical and pneumatical system) and dry brush machine is explained in detail.

介绍了蒸汽去皮原理，详细说明了蒸汽去皮设备的设计（包括蒸汽设备主体、冷凝水排除系统、蒸汽缓冲罐、电控及气动系统的设计）、毛刷去皮机的设计。

In experiments 1, various steam conditioning time (0, 15, 30, 45 and 60 min) of pre-steam-flaking high oil corn were selected to determine the effect of the steam conditioning time on the gelatinization of starch and ruminal fermentation in vitro.

试验1 采用调制时间为0min、15min、30min、45min、60min的高油玉米，研究不同调制时间对预处理的蒸汽压片高油玉米淀粉糊化度和人工瘤胃发酵的影响。

And Toona sinensis were steam-treated at temperature 70℃ and 90℃ for 4 h and 8 h. The radial gas permeability and tangential gas permeability of the steam-treated specimens were compared with those of non-steam-treated one.

处理条件为：杉木和马尾松木材的汽蒸温度分别为90、100℃，假水青冈和香椿木材的汽蒸温度分别为70、90℃，处理时间分别为4 h和8 h，并对汽蒸处理前后木材的弦向和径向气体渗透性分别进行了测定。

The deaerated head is mostly consisted of shell and primary and secondary deaerated devices, on which there are the Inlet of primary heating steam, and the ports of secondary heating steam and exhaust steam as well as the interface of safety valve.

除氧头主要由筒体、一级除氧装置、二级除氧装置等组成。在其上设有一次加热蒸汽进口、二次加热蒸汽口、排汽口、安全阀接口等组成。

It uses middle extracted steam from steam turbine to heat the feetwater of boiler to the saturate temperature under working pressure of deaerator, so as to remove dissolved oxygen and other gases. To prevent or slow boiler and steam turbine as well as pipeline from corroding, and extend them service life, to ensure the operation of the power plant under safety economic condition. The high-pressure deaeator of 235t/h is a kind of mixture-type heater, which shall match with 55 MW units, whose deaerated head adopts a kind of new-style stuffing way with rotation film.

它是利用汽轮机的中间抽汽将锅炉给水加热到除氧器工作压力下的饱和温度，以达到除去给水中的溶解氧和其它气体，防止或减缓锅炉、汽机及其管道的腐蚀，延长其使用寿命，确保电厂的安全经济运行。235t/h高压除氧器是配55MW机组的混合式加热器。

The paper takes the steam turbine valve actutors and control systems as the object of study, and the fast valving of regulating valves in case of electrified wire netting failure plays an important role. The disadvantages of electro-hydraulic control systems for steam turbine available are discussed, and the principle of the new system and its design method are presented, experimental study and theoretical analysis results concerning the steam turbine electro-hydraulic control system based on the new combination principle are reported in this paper.

本文把汽轮机蒸汽阀门电液执行机构及控制系统作为主要的研究对象，尤其是针对于电网故障时，调节汽门快关控制问题进行了深入的研究，指出现有汽轮机电液控制系统存在的问题，在继承和总结前人研究的基础上，提出了汽轮机电液控制系统组成原理的新思想与系统设计的新方法，对基于这种新原理的汽轮机电液控制系统进行了系统的理论分析与试验研究。

Therefore, it is imperative that you need to be prepared for the great change that is about to occur.

所以，你需要为快要出现的伟大改变准备好，这是必要的。

If u agree with our suggestion of dicker trade,we will exchange paper with u wood.

如果你方同意我们进行易货贸易的建议，我们将用纸与你们交换木材。