查询词典 turbine-engined

II METHOD1 chose one of 3A level hospitals dentistry to carry through sanitation quality investigation of the dental diagnosis and treat instruments. Examined appliance include air turbine dental handpieces, punch-pin, odontoscope, bougie, tweezer, flex-tray that were so common used by dentists and daubed the inside or outside surface of the dental appliance and collected it; Examined targets were HBsAg, HBeAg and HBV-DNA (detected it with molecule spot cross method).2 make good use of the air turbine dental handpieces bracket jack which was all available in every china hospital dentistry and design outside shape and inside structure of the binary disinfectant-box for the air turbine dentalhandpieces.

二 方法 1 选取本市某所三甲医院口腔科使用的牙钻手机、车针、口镜、探针、镊子及弯盘6种常用诊疗器具行涂抹采样；检测指标为HBsAg、HBeAg、HBV-DNA；检测方法为HBsAg和HBeAg采用ELISA法，HBV-DNA为斑点杂交法； 2 充分考虑、利用现有牙钻手机支架插孔，设计牙钻手机二元消毒盒外形及内部构造；选定高效消毒剂戊二醛为消毒盒消毒腔内应用消毒液，其消毒效果及毒性鉴定试验参照卫生部消毒技术规范执行。

The experimental results used in this study were obtained in the European SIROCCO project1, which aims at a reduction of wind turbine noise by designing new blades with low trailing edge noise emissions, the project focused on two wind Turbines: an 850 kW GAMESA turbine and a 2.3 MW GE turbine, with rotor diameters of 58 m and 94 m respectively.

实验性结果被使用在这项研究被获得了用欧洲人 SIROCCO project1，瞄准风涡轮噪声减少由设计新刀片以低后缘噪声放射，项目集中于二风涡轮：一个850 千瓦GAMESA 涡轮和一个2.3 兆瓦GE 涡轮，以58 m 和94 m 电动子直径各自。

Compared with traditional wind turbine, the direct drive wind turbine manufactured by the company owns distinct advantages of high efficiency, gearless, reliable system, easy maintenance, low noises and good quality of grid connection. This type of product represents the developing trend of international wind turbine technology, and it is popularly installed in Netherlands, Finland, Germany, Japan, and Taiwan of China as well as Northern part and coastal area of China, which enjoy high evaluation from customers.

湘电风能制造的兆瓦级直驱式风力发电机组与传统机型相比，具有系统可靠、转动部件少、无齿轮箱、运转噪声小、风能利用效率高、上网电源质量好及维护成本低等明显优势，代表了世界风电技术的发展趋势，在我国各地风场和台湾地区，以及荷兰、芬兰、德国、日本等国家得到了广泛的应用，赢得了用户的高度评价。

In order to assurance the maching accuracy and surface quality of steam turbine blades,based on typical CAD/CAM software Pro/Engineer 2.0,the flow diagram of parametric modeling and maching of turbine blades is drawn;The 3-D entity model of Steam Turbine Blade is upbuilt by parametric modeling method,and the fit-method with NURBS is extracted to smooth the curve surface,and the matrix expression of NURBS is deduced to make the surface more accurate;Then based on it's CAD model,the maching technology process...

为保证汽轮机叶片的加工精度和表面质量，以典型的CAD/CAM软件Pro /Engineer Widefire2.0中文版为基础，绘制了汽轮机叶片参数化设计加工的流程图；用参数化建模方法建立了叶片的三维实体模型，提出用NURBS曲线拟合方法进行光顺处理，并推导出NURBS的矩阵表达式便于截面型线的拟合，进而使叶片的造型更加精确；在CAD模型的基础上，分析了叶片的加工工艺流程，并用软件的CAM功能对叶片进行数控加工仿真，生成了NC代码。

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。

Based on the 3D time-average Navier-Stokes equations, k-ε model was used to simulate the 3D turbulent flow field of whole flow passage in the Francis turbine including guide wickets, runner and draft tube. The energy performance and cavitation performance were predicted from the simulation results, and the calculated data were compared with the results of hydraulic turbine model experiment. The calculation of turbine efficiency and the measured efficiency was very closed and the maximal relative error was 0.9%.

该文基于Navier-Stokes方程和k-ε紊流模型，采用贴体坐标和交错网格系统，用SIMPLEC算法对一模型混流式水轮机引水元件、转轮和尾水管进行了联合计算与转轮单流道计算，数值模拟了水轮机各通流元件内部三维湍流流场，预测了水轮机的能量性能和空化性能，并与水轮机模型试验结果进行了对比。

The gasturbine own electricity generation efficiency does not calculate veryhigh, generally between 30%~ 35%, but produces the waste heat hazetemperature reaches as high as 450 ~ 550 ℃, may recycle the heatenergy transformation steam once more through the afterheat boiler,the actuation steam turbine sends time of electricity again, forms thegas turbine -- steam turbine union circulation electricity generation,the electricity generation efficiency may achieve 45%~50%, somelarge-scale units even may surpass 55%.

燃气轮机自身的发电效率不算很高，一般在30％～35％之间，但是产生的废热烟气温度高达450～550℃，可以通过余热锅炉再次回收热能转换蒸汽，驱动蒸汽轮机再发一次电，形成燃气轮机--蒸汽轮机联合循环发电，发电效率可以达到45%~50%，一些大型机组甚至可以超过55％。

A set of calculation methods of design flow at all stages for industrial extraction turbine were presented,based on the analysis of thermodynamic design principles on the flow section of industrial steam turbine,and the thermodynamic design software of non-standard industrial steam turbine was developed by using modular programming.

在总结工业汽轮机通流部分热力设计的基本原理和设计流程的基础上，提出了一套抽汽式工业汽轮机各级段设计流量的确定方法，并借助模块化编程思想，开发了工业汽轮机热力设计软件系统。

Then the turbine's extraction steam flow and the main turbine's steam increase are confirmed through the analysis of the relationship between feed pump parameters and main turbine flow rate under variant working condition.

接着，分析该汽轮机在变工况下给水泵参数与主机流量的关系，确定该汽轮机在变工况下的抽汽量和主汽轮机蒸汽增加量。

A quasi one-dimensional, time dependent system model based on the parallel compressor theory was used to compute the effect of inlet distortion on turbine engine stability; Through Modifying steady state continuum equation, momentum equation and energy equation, the effect of power extraction and additional bleed on turbine engine running line was computed. Unsteady state continuum equation, momentum equation and energy equation were solved for computing the effect of acceleration on turbine engine running line.

其中，进气畸变对发动机气动稳定性影响的计算采用平行压气机模型，基于李亚普诺夫理论的方法完成；附加引气、功率提取对发动机气动稳定性的影响采用通过对发动机转子间质量、动量、能量守恒方程进行修正的方法进行；加速过程对发动机气动稳定性的影响采用欧拉方法求解动态的质量、动量、能量守恒方程的方法完成；最后采用&层迭&的方法进行各种降稳因素的综合评估。

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。