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Along with the fast development of the power system, DEH has become the essential control system for steam turbines , especially for large steam turbines .

随着电力系统的飞速发展，数字电液控制系统成为当今汽轮机特别是大型汽轮机必不可少的控制系统。

Along with the fast development of the power system,DEH becomes the essential control system for stream turbines,especially for large stream turbines.

随着电力系统的飞速发展，电网正在向电压高、距离远、容量大的方向发展，单元机组的运行方式也更趋复杂。

This new power plant will have six gas turbines, six exhaust gas heat recovery steam generators, two steam turbines, and auxiliary facilities.

这个新的电厂将有六个燃气涡轮，六个废气余热蒸汽发生器，两台蒸汽涡轮发电机和其他辅助设施。

Analytical results showed that the thermal efficiency and exergy efficiency increased with increasing condensation temperature of Rankine cycle, inlet pressure of turbines of Rankine cycle and LNG cycle, and decreased with increasing outlet pressure of turbines of Rankine cycle and LNG cycle.

分析结果表明，混合动力循环热效率和可用能效率随朗肯循环冷凝温度升高、朗肯循环透平进口压力和液化天然气循环透平进口压力增大而提高，随朗肯循环透平出口压力和液化天然气循环透平出口压力增大而降低。

Like wind turbines, but powered by the flow of water instead of the flow of air, tidal power turbines transform tides or deep ocean currents into electricity.

就象风能涡轮机靠气流来驱动一样，潮汐能涡轮机是靠水流来驱动的，将潮流或深海洋流转化为电能。

Small scale wind turbines Small wind turbines are sized at a hub height of 25 meters and under.

小型风力涡轮机的轮毂高度在25米及以下。

Cavitations in foreign hydraulic turbines appear in clear water condition, so its destructive extent is not far more serious than in Yellow River hi our country. Stronger stiffness and more agility are required for Special-purpose robot for hydraulic turbine repair used in our country. Foreign robot for hydraulic turbine repair could not satisfy our working require, so we develop special-purpose robot system that is used to polish and weld repair cavitate flow path surfaces of hydraulic turbines on all location.

国外水电站的水轮机汽蚀是在清水条件下产生的，其破坏程度远不及我国黄河等水域严重，用于我国水轮机修复工作的专用机器人，要求有更强的刚度和更大的灵活性，国外水轮机修复机器人满足不了我国水轮机修复工作的要求，因此我们开发了用于在机坑内对水轮机空蚀磨损破坏表面进行修复的&水轮机修复专用机器人&。

To improve the economy, larger bypass ratio has been adopted in the turbofan engine design, leading to a larger fan high, larger speed gap between HP and LP turbines, the meridian geometry of the engine will be excurvature at a high degree, which brings problem for the design of LP turbines, transition section between HP and LP turbines.

在现代高性能的航空涡扇发动机设计中，为了提高经济性，采用较大涵道比，导致风扇高度增加较大，高低压涡轮转速差距较大，高低压过渡段采用大子午扩张型线结构，给低压涡轮及过渡段气动设计带来较大的困难。

It's an effective measure of fast valving in improving the dynamic stabilities of power system and preventing the overspeed of steam turbines, but the fast valving technique available can satisfy the need of modern steam turbines no more. On the basis of the new type fluid logic valve, which combines the regulating systems and safety systems happily, the steam turbine EHC based on new principle is put forward, one of its outstanding characteritics is, the fast valving is operating in a closed control loop. For the implementation of control for steam generator regulation and safety systems with nonlinear mult-operating modes, a new methodology for designing a fuzzy logic controller is proposed, which is based on the combination of"error phase plane"and"variable universe of discourse". Application of a double-mode FLC with the new methodology is presented, the validity of the design methodolody is desmonstrated by test; A new methodolody is also presented to improve the design and tuning of a FLC using variable structure control theory.

本文还详细讨论了快关控制在提高电力系统暂态稳定性及超速保护中的应用，分析了现有的快关控制规律的局限性，研究出一种基于新型快关阀的汽轮机电液控制系统，其突出特点是使汽轮机闭环快关成为现实，指出这种基于新的组成原理与设计方法的汽轮机电液控制系统对不同工况下的适应能力；针对汽轮发电机组多工况、非线性的特点，提出一种把&误差相平面&方法与&可变论域&思想有机结合的双模FLC设计与调整的新方法，试验结果表明该系统具有良好的动、静态特性；为改善FLC控制规则的设计与调整，作者还介绍了一种把滑模变结构理论成功应用于模糊系统设计的新方法。

This is no ordinary high-rise. At its summit, three huge wind turbines will set a green example visible for miles around. The 9m wide turbines will cut resident energy bills by around 40%, and neatly cube errant skydivers.

这不是普通的摩天大楼，在其顶端将设置三个巨大的风力涡轮机，这个一个几里远都能够看到的绿色标志。9米宽的涡轮机将节约40%的居民用电。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。