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nozzle     
相关语句
  喷嘴
    Calculation of Equivalent Nozzle Area of the Turbine Stage
    涡轮级当量喷嘴截面积的计算方法
短句来源
    A Method for Thermodynamic Calculation of the Axial Flow Turbocharger Turbine with Variable Geometry Nozzle
    具有可变几何喷嘴的增压器轴流涡轮热力计算方法
短句来源
    A Simplified Mathematics Model of Critical Flow in Vapour-liquid Two-phase Nozzle
    汽液两相喷嘴中临界流的简化数学模型
短句来源
    EXPERIMENTAL STUDY ON JET FEATURES OF THE NOZZLE WITH ELLIPTICAL EXIT
    长圆形出口喷嘴射流特性的实验研究
短句来源
    Nozzle Design for Improved Hydraulic Decoking Device
    新型水力除焦器喷嘴设计
短句来源
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  喷管
    The New Gas Flow meter -The Sonic Nozzle Flowmeter
    一种新的气体流量计—音速喷管流量计
短句来源
    A NUMERICAL CALCULATION OF THE TWO-DIMENSIONAL NOZZLE JET
    二元喷管射流的数值计算
短句来源
    Calculation of Two Phase Flow for Solid Rocket Motor Nozzle
    固体火箭发动机喷管两相流动计算
短句来源
    THEORETICAL CALCULATION OF COMPLEX NOZZLE'S TEMPERATURE PROFILE AND STRESS PROFILE IN SOLID ROCKET MOTOR
    固体火箭发动机复合结构喷管温度场与应力场理论计算
短句来源
    DIRECT COEFFICIENT MATRIX SPLITTING FOR NUMERICAL COMPUTATION OF TRANSONIC NOZZLE FLOW
    直接的矩阵分裂计算跨音速喷管流场
短句来源
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  接管
    Stress Analysis and Fatique Evaluation a FillerWelded Nozzle in a 130t/h Boiler Drum (Ⅰ)
    130t/h 锅炉汽包凹槽浅插式接管结构应力分析及疲劳寿命估算(一)
短句来源
    Fatigue Evaluation on a Filler Welded Nozzle in a 130t/h Boiler Drum
    130t/h 锅炉汽包凹槽浅插式接管结构的疲劳寿命估算(二)
短句来源
    A Study of the Effect of Stub Ended Nozzle on Boiler Drum Strength
    翻边接管结构对锅炉汽包强度的影响
短句来源
    In this paper stress concentrations analysis and test results of nozzle in power plant boiler drum are introduced.
    本文介绍了电站锅炉汽包接管部位的应力集中的分析和试验结果。
短句来源
    In this paper,considering the special structure of slightly inserted and fillet welded nozzles,on the basis of analyzing and simplifying a nozzle (Φ108×4 5mm) zone in a 130 t/h boiler drum,an approximare method of calculating this kind of nozzle-zone longitudinal section stress was introduced. Moreover,a mechanics model was established and the finite element calculation was accomplished.
    本文针对中压锅炉汽包凹槽浅插式接管的特殊结构,以130t/h锅炉汽包108×4.5mm接管为例,通过分析研究提出了凹槽浅插式接管与汽包筒身交接部位纵剖面应力分布的简化理论,进行了接管部位的有限元计算,并参考应变-应力的实际电测结果,综合确定接管区域危险部位的应力状况。
短句来源
  喷口
    Discussion on Mathematic Model and Measurement of the Flow in the Secondary Air Nozzle of Boilers
    锅炉二次风喷口流量的数学模型及测量方法探讨
短句来源
    Experimental research on the fire-carrying problems in primary air nozzle of 125 MW units
    125MW机组一次风喷口带火问题试验研究
短句来源
    Combined with experimental results, it analyses the characteristics of the multiphase flow to the jets, especially different baffle body height, nozzle type and particle diameter.
    结合实验研究,文章分析了分析该燃烧器射流的气固多相流动的特点,着重研究了不同撞击块高度、喷口型式和颗粒粒径等因素对射流流场的影响。
短句来源
    The velocity, stream function, pressure and turbulent Kinetic energy distributions are solved for three oblique impingement angles with nozzle width of B = 10 mm, plate-to-plate spacing of H = 2B and jet Reynolds number of Re = 20000. The numerical results show that the impinging jet flow field is significantly affected by the oblique impingement angle.
    针对喷口宽度B=10mm、冲击高度H=2B和射流雷诺数Re=20000的流场,分别得到了三种射流倾角下的速度、流函数、压力和湍动能分布。
短句来源
    An experimental study as well as calculations and analyses indicate that CO is mainly generated in a cylindrical space of 400 mm about 600 mm~3000 mm away from the burner spray nozzle. In other areas outside the cylindrical space, the combustion proceeds fully and almost no CO is produced.
    实验研究和计算分析表明CO主要生成在离燃烧器喷口约600~3000mm、400mm的柱状空间内,在柱状空间外的其它区域,燃烧充分,CO几乎为零。
短句来源
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  nozzle
For simplicity, the inclination of the nozzle to the wall CE is set equal to 90°.
      
Calculations of axisymmetric jet leaving a nozzle at jet pressure lower than pressure in medium
      
The problem of discharge of a supersonic axisymmetric jet from a nozzle at a jet pressure less than the pressure in the surrounding medium is considered.
      
Calculation of mixed sub- and supersonic gas flow in a plane pressure nozzle
      
For the system of equations of motion of the mixed elliptic-hyperbolic type in the potential plane, a particular solution is found which corresponds to gas motion in a nozzle with a curved sonic line.
      
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The principle of combustion of flat oil flame with low-pressure atomizing air has been studied here and so a relevant oil burner has been developed. Some kinds of distribution, such as flow velocity, contemplated pressure, spatial density of droplets and flame temperature, have been measured along the jet or flame avis on several cress sections. From an examination to the theory of influence of atomizing air on drop diameter it is concluded that about less than 50% of the total combustion air requirement is...

The principle of combustion of flat oil flame with low-pressure atomizing air has been studied here and so a relevant oil burner has been developed. Some kinds of distribution, such as flow velocity, contemplated pressure, spatial density of droplets and flame temperature, have been measured along the jet or flame avis on several cress sections. From an examination to the theory of influence of atomizing air on drop diameter it is concluded that about less than 50% of the total combustion air requirement is used for atomizing, and the rest for the radial flame forming by swirling it into the combustion chamber. The combustion air is supplied by a blower at a lower pressure from 600 to 800 kg/m2. An expected distribution of oil spray is obtained by means of a special turbulence chamber which makes the oil spray in spiral motion. Under these conditions following results are observed,the Sauter's mean diameter (S. M. D.) of oil droplets measured on cross section is about 60 μ;-two peak values symmetrical about jet axis are showing on the radialdensity profile of droplets;-the axial flow velocity measured along jet axis close by nozzle issmall even negative, and so a reverse flow is generated which provides the axisymmetrical vortex within the flame.So long as all the foregoing take place, it is possible to produce a radial flat flame with low-pressure atomizing air. The new type DPY oil burners designed according to above-mentioned principle have been tried in operation with heavy oil fuel. As a result, a flat flame with diameter from 1 to 2.5 m and thickness 100 to 200 mm should be stabilized . The flame temperature is uniform and, especially, the fuel consumption of industrial furnaces has been reduced distinctly.

在理论分析的基础上,提出了在低压雾化条件下实现重油平火焰燃烧的原理,并研制了相应的新型油烧咀。采用600-800mm水柱压力的空气,将燃烧空气量的约50%做雾化剂,而将其余空气量以旋流方式做助燃风,可以得到稳定的平火焰。平火焰的直径为 1—2.5 m,厚度为 100—200 mm,火焰中温度分布较均匀。烧阻在工业炉上试验时,使炉子的燃料消耗量大幅度降低。

The paper describes some problems relating to the liquid atomization theory in the plant protection machinery. Those are: the motive force of liquid atomization, the energy consumption in liquid atomization, liquid atomization by the tip of capillary tube, liquid atomization by the flat-fan type nozzle, liquid atomization by the rotating disc, liquid atomization by the swirl mozzle, lipuid atomization by the air blast force, liquid atomization by the electrostatic force, and liquid atomization by the ultrasonic...

The paper describes some problems relating to the liquid atomization theory in the plant protection machinery. Those are: the motive force of liquid atomization, the energy consumption in liquid atomization, liquid atomization by the tip of capillary tube, liquid atomization by the flat-fan type nozzle, liquid atomization by the rotating disc, liquid atomization by the swirl mozzle, lipuid atomization by the air blast force, liquid atomization by the electrostatic force, and liquid atomization by the ultrasonic wave.All these theories, however are appliad with certain limitations. further resear-ches and experiments are required for obtaining the more informations intended for the improvement and invention of the plant protection machinery, which are urger-ntly needed in the agricultural production.

本文叙述了关于植保机械的几个雾化理论问题,其中包括:液体雾化的动力,液体雾化所消耗的能量,毛细管尖咀雾化,扇型雾喷头雾化,转盘雾化,涡流式喷头雾化,风送雾化,超声波雾化,静电雾化。这些理论都有其一定的局限性,尚有待于进一步作全面而系统的试验研究,才能为改进、创制植保机械提供具体可靠的基本资料和切实有效的理论依据,从而满足农业生产上的迫切需要。

In design of pintle type nozzle,the inner cone sealing surface of the needle

轴针式喷油咀的设计中,一般以针阀体密封锥面作为基准。但作者认为不大合理。本文提出另一种途径,将主要基准移至针阀体尾端,所有尺寸都作相应调整。为此,则加工和检验变得比较方便,流通面积的偏差显著缩小。

 
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