研究出

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。

X-ray photoelectron spectroscopy was used to analyze the composition of rare earth metal conversion coating.

研究出pH缓冲剂A和辅助添加剂B延长了处理液的使用寿命并提高了转化膜的结合力。

Thanks to surgical navigation systems the surgeon can additionally work out on the computer what approximate path needs to be taken before the operation, e.g. to optimally reach deep-lying organs that are difficult to access.

多亏了手术协商系统，外科医生才能在手术之前在计算机上研究出所学的大致途径，例如，以最佳方式达到难以达到的深层器官。

The traditional method of coal-layer thickness prediction is to interpolate and contrast between the boreholes, of which precision is very low and thus many new methods are proposed for practical applications.

煤层厚度预测的传统方法是利用钻孔资料的内插对比获得，精度很低。在实际应用中，人们又研究出了多种方法。

WC wrote the study from the Center for Global Development in Washington. He says countries close to the equators will be hardest.

在华盛顿世界发展中心，WC研究出了他的成果，他说越接近赤道的国家越容易更威胁。

As for the trout, Dr Bradley says his fish have enough trouble breeding on their own for it to be unlikely that they would do well in the wild.

至于鳟鱼，布拉德利博士说，他研究出的鱼要实现自我繁殖似乎不太可能，它们在野外难以生存。

Our approach to grape growing combines a commitment to maximising the quality of our wine with careful consideration of our environmental impact.

我们结合环境因素的影响研究出相应的葡萄栽培方法，从而得以最大程度提高葡萄酒的品质。

High-sulphur steel self-lubrication new materials is studied.

试验研究出一种高硫钢自润滑新材料，利用金属硫化物的自润滑减摩作用来提高轧机导辊的使用寿命。

In order to facilitate the registration and evaluation of holograms, the holodiagram was developed.

为了使全息图易于记录和计算，研究出一种全息析纹图。

By using fast Fourier transform and Hankel inversion algorithms, a data processing method based on Abel inversion for measuring temperature distribution of plasma is studied.

采用基于快速傅里叶变换和汉克耳变换的阿贝尔逆变换数值方法，研究出一种等离子体二维温度场分布的数据处理方法，并进行了计算精度分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。