1)governing stage efficiency调节级效率
1.Choosing proper opening lap value between governing valves can improve governing stage efficiency.选择合适的调节阀重叠度能够提高调节级效率;合理的开启顺序可以减轻轴承载荷。
2.In view of these problems,this paper studied the nozzle governing overlap of operation mode of sequential valve,with which the rational overlapping fixed by a further test performed with the governing system,and the influence of governing stage efficiency and the governing system.针对单阀切换顺序阀时引起的负荷波动、汽轮机主要运行参数出现异常变化问题,对顺序阀运行方式下重叠度的确定进行了研究分析,通过调节系统试验确定合理重叠度的方法,并分析了重叠度对调节系统和调节级效率的影响。
2)Regulation of photosynthetic efficiency光合效率调节
英文短句/例句
1.Study on Solar Energy Utilization and Regulate Machanism of Photosynthetic Efficiency of Cucumber in Solar-greenhouse;日光温室黄瓜光能利用与光合效率调节机理的研究
2.Regulative Mechanism of Nitrogen Nutrition on Phyotosynthetic Efficiency of Dryland Wheat;氮素营养对旱地小麦光合效率的调控机制
3.digital blending control system数字式混合比率调节器
4.Effects of Light Quality on Photosynthetic Efficiency and the Resistance to Sphaerotheca Fuliginea in Cucumber Plants光质对黄瓜幼苗光合效率和白粉病抗性的调控机理
5.Regulation Effects of Exogenous Hormones on Growth and Photosynthesis and Yield of Rapeseed (Brassica napus L.) after Frozen植物生长调节剂对油菜生长及冻害后光合作用和产量的调控效应
6.Regulation of Glycolytic Capability and Pyruvate Production in Torulopsis Glabrata;光滑球拟酵母中糖酵解效率与丙酮酸合成的调控研究
7.Studies of Salicylic Acid on Senescence and Net Photosynthetic Rate of Leaves in Three Pears;水杨酸调控三个梨品种叶片衰老及光合速率的效应研究
8.Design HB LED Driver Through Primary Side Regn Lation通过初级端调节提高HB LED照明效率
9.diaphragm-adjusting lever for compound optical microscopes复合光学显微镜光圈调节杆
10.Analysis of the spectral beam combining efficiency of diode laser半导体激光器光束谱合成效率的分析
11.Effect of Combined Exogenous Regulating Substance on Cotton Bolling;棉花成铃的组合外源调节物质调节效应研究
12.A businessman must wed efficiency to thrift.企业家必须于效率兴节约相结合。
13.High efficiency phosphorescence light-emitting diodes with conjugated polymer host高效率共轭聚合物主体绿光磷光发光二极管
14.Efficient white light-emitting device based on phosphorescent emissive layer combining with fluorescent emitter layer高效率磷光与荧光相结合的白色有机发光器件
15.Effect of Irrigation and Fertilizer Application at Jointing Stage on Photosynthetic Characteristics and Leaf Water Use Efficiency of Winter Wheat at Grain Filling Stage拔节期水氮运筹对冬小麦籽粒灌浆期叶片光合特性及水分利用效率的影响
16.Research on the Photovoltaic Grid-connected Power Conditioner System and It's Control Strategies;光伏并网功率调节系统及其控制的研究
17.Photovoltaic Grid-connected Power Conditioning System Based on Active Disturbances Rejection Control基于自抗扰控制的光伏并网功率调节系统
18.Analysis of Combining Efficiency of Spectral Combining Technique for Fiber Lasers光纤激光器谱合成系统合成效率的计算分析
相关短句/例句
Regulation of photosynthetic efficiency光合效率调节
3)load frequency coefficient频率调节效应系数
4)governing stage调节级
1.A method to increase the efficiency of governing stage of introduced 300 MW steam turbine unit;一种提高引进型300MW汽轮机调节级效率的方法
2.Defect of steam-seal of governing stage and its influence on energy consumption of 310MW units;310MW机组调节级汽封缺陷及对机组能耗的影响
3.Study on composite inclined governing stage for a large-capacity turbine;大容量汽轮机复合倾斜调节级研究
5)control stage调节级
1.Solid particle erosion (SPE) is very critical on the life cycle of control stage nozzle for supernormal parameters steam turbine.固体颗粒冲蚀严重影响超常参数汽轮机调节级喷嘴寿命。
2.The control stage of improved 300MW steam turbine used bowed static blade cascades with convergent tip endwall and integral shroud triple pin rotating blades.优化了 30 0MW汽轮机的调节级 ,采用了子午面端壁收缩的弯曲叶栅 ,动叶为自带围带三销钉三联叶片 ,再用铆接围带形成整圈联结叶片。
6)Stepless adjustment无级调节
1.It is verified that the new hydraulic breaking hammer features simple structure,stepless adjustment of impacting power and frequency,power saving,easy maintenance,etc.在分析国内外现有液压破碎锤工作原理的基础上首次提出一种可以无级调节冲击能和冲击频率的新型液压破碎锤 ,并对它进行了计算机仿真研究 ,同时通过样机进行了大量的实验研究。
延伸阅读
级效率 分级接触传质设备中，一个级的传质分离效果接近理论级的程度的度量。在分级接触传质设备的设计中，实际级数的确定是主要内容。板式塔的级效率，常称板效率。在设计计算中常用的级效率有单级效率和总级效率。 单级效率 又称莫弗里效率,可分别用x相（在吸收和蒸馏中为液相,萃取中为萃余液）或y相（在吸收和蒸馏中为气相或汽相，萃取中为萃取液）的浓度（以摩尔分率表示）来计算，即： 式中ηMx和ηMy分别为以x相浓度和y相浓度来表示的第n级的单级效率;yn和yn+1分别为离开第n 级和第n+1级的y相浓度;xn为xn+1分别为离开第n级和第n-1级的x相浓度；y为与xn平衡的y相浓度;x为与yn平衡的x相浓度。x相从第n-1级流向第n级，y相则从第n+1级流向第n级。 总级效率 又称全塔效率，是某分离操作所需的理论级数NT和实际级数NP之比，即： η0＝N T/NP式中η0为总级效率，它实质上是全塔各级级效率的某种平均值。级效率综合地反映了相互接触的两相在级内的传质情况，它与许多因素有关。在气（汽）液传质的板式塔中,影响板效率的因素有：①塔板的结构和尺寸;②气液两相的流动接触情况（包括泡沫层高度、速度分布、气液相的返混、雾沫夹带和塔板漏液等）；③两相的有关物理性质（如分子扩散系数、密度、粘度、表面张力和相对挥发度等）。这些因素与级效率的复杂关系，至今尚未搞清。目前，有些针对特定塔板结构的总板效率的经验关系式，在设计中可用于估计；通常，可靠的级效率值仍须由实验测定。美国化学工程师协会提出过一个计算泡罩塔和筛板塔板效率的方法，但其中用到的一些基本数据仍须由实验求得。
