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脉动     
相关语句
  pulsation
    Flow Pulsation of the Axial Piston Pump
    轴向柱塞泵的流量脉动
短句来源
    Spherical Rotor Pump Discharge Pulsation
    球形转子泵流量脉动分析
短句来源
    STUDY OF PRESSURE PULSATION CRITERION FOR THE CAVITATION OF CENTRIFUGAL PUMP
    离心泵汽蚀的压力脉动判据研究
短句来源
    Discussion on the Methods of Decreasing Gas Pulsation of an Air Compressor
    消减空压机气流脉动方法的探讨
短句来源
    Discussion about Pulsation of Stator Radial Force in Variable Flow Vane-type Pump
    变量叶片泵定子径向力脉动分析
短句来源
更多       
  fluctuation
    Calcluation of the inner Fluctuation Flow Field and the Rotary Noise of a Centrifugal Fan
    离心式风机内部脉动流场和旋转噪声的计算
短句来源
    Design Of Chamber Pressure Fluctuation Attenuator
    球腔式压力脉动衰减器的设计分析
短句来源
    Dynamic Simulation of the Flow Fluctuation in Water Hydraulic Axial Piston Pump
    水压轴向柱塞泵流量脉动动态仿真
短句来源
    Analysis and Attenuation Method of Hydraulic Pump Pressure Fluctuation
    液压泵压力脉动分析及衰减措施
短句来源
    Research Actuality and Prospect of Active Control of Hydraulic Fluid Fluctuation
    液压流体脉动主动控制研究现状与展望
短句来源
更多       
  pulse
    Compare and analysis of theoretical study and experimental measur ement of pressure pulse of reciprocating pump discharge lines
    往复泵排出管线压力脉动理论研究与实验对比分析
短句来源
    Reaserch on the Mechanism Motion Analysis and Motion Display of the New Style Pulse Stepless Transmission
    一种新型脉动式无级变速器机构运动分析与运动仿真研究
短句来源
    The Development of Low-flux Pulse Pump
    低流量脉动干油泵的研制
短句来源
    The Application of Low-flux Pulse Lubricating Grease Pump in Rheological Experiment
    低流量脉动润滑脂泵在流变实验中的应用
短句来源
    In this case, HS-LETRY 100KN microcomputer controlled high frequency fatigue test machine and single tooth pulse bleaching loading method are adopted.
    本试验采用HS-LETRY 100KN微机控制高频疲劳试验机和单齿脉动加载法进行加载,对试验结果采用成组法和升降法进行处理,首次通过试验方法得到了ZY-1型硬齿面双圆弧齿轮在不同可靠度下经受N_0=3×10~6循环而不失效的极限载荷值。
短句来源
更多       
  pulsation flow
    Mechanism design of pulser in pulsation flow desiccation machine
    脉动流化干燥机中脉冲气流发生器的机构设计
短句来源

 

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      pulsation
    Operating characteristics of solid-state fermentation bioreactor with air pressure pulsation
          
    The paper deals with the development of a novel SSF bioreactor with air pressure pulsation.
          
    By developing a measurement and control system under the Virtual Instrument (VI) concept, the performance of the SSF bioreactor with pressure pulsation was studied by cultivating Trichoderma koningii in solid medium made of wheat bran and corncob.
          
    The cooling effects of pressure pulsation on solid porous beds are discussed.
          
    Experimental results show that pressure pulsation enhances medium moisture evaporation, and hence, heat dissipation.
          
    更多          
      fluctuation
    In this paper, the classical risk process perturbed by diffusion is generalized by allowing for "size fluctuation" and the ruin probability for this new model is discussed.
          
    A new feature extraction method using the amplitude fluctuation property of target HRRP for radar automatic target recognition
          
    Actually, the amplitude fluctuation property of target HRRP also represents some feature information of the target.
          
    Based on the scattering center model, a new feature extraction method using the amplitude fluctuation property of target HRRP is proposed in this paper.
          
    Effect of soil water changes on photosynthetic characteristics of Taxodium distichum seedlings in the hydro-fluctuation belt of
          
    更多          
      pulse
    A sensitive complex absorptive wave of Ca-ARS was obtained by using differential pulse voltammetry when a mercury film glass carbon electrode was immersed in 0.1 mol L-1 KOH and 4.5×10-4 mol L-1 ARS solution.
          
    The reaction mechanism between isoquinoline and ·OH radical in aqueous dilute solutions under different conditions was studied by pulse radiolysis.
          
    The electrochemical behavior of ciprofloxacin (CFX) and its interaction with the natural calf thymus DNA (ctDNA) is studied by using pulse difference voltammetry on a carbon electrode.
          
    Furthermore, it is clear that when carrier signal h(t)=0, closed-loop pulse-width modulation (PWM) DC-DC converters are not well posed, and when some condition is satisfied, the closed-loop PWM DC-DC converters with a P controller are well posed.
          
    In this paper, the authors propose a new space vector pulse width modulation (SVPWM) algorithm based on non-orthogonal coordinates for N-level inverters.
          
    更多          


    With the help of hot-wire and pressure pick-up,experiments are conducted on

    应用热丝风速仪、压力传感器小惯性仪表,对轴流式压缩机孤立工作轮气流旋转脱离现象,进行了实验研究。实验得出了该压缩机工作轮的性能曲线是断开式的,测出了脱离传播速度和脱离团数,并对旋转脱离之脈动气流的速度、压力进行了测量。同时还对压缩机喘振现象进行了初步的观察。本文以“轴流式压缩机叶栅中的旋转脱离问题”一文的理论分析为基础,对与气流切向速度,轴向速度比有关的脱离传播速度公式作了某些发展。最后将实验结果对文献和本文的理论分析进行了初步的比较与验证。

    It has been proved in a number of cases that the installation of orifice plates in proper positions along the pipehnes of a reciprocating compressor is one of the effective measures for redueing the vibrations of pipelines. Since it is not difficul to put it into practice, it has drawn inereasing attention of the compressor users throughout the country.This paper mainly explains the mechanism of reducing the pulsation of gas flow by means of orifice plates, some ealculation and test results having also been...

    It has been proved in a number of cases that the installation of orifice plates in proper positions along the pipehnes of a reciprocating compressor is one of the effective measures for redueing the vibrations of pipelines. Since it is not difficul to put it into practice, it has drawn inereasing attention of the compressor users throughout the country.This paper mainly explains the mechanism of reducing the pulsation of gas flow by means of orifice plates, some ealculation and test results having also been given. In view of a lack of adequate explanation of the mechanism of this phenomenon in the literature, this paper might be a fuller treatment of the problem.

    许多事实已经证明,在往复式压缩机管道的适当部位安置孔板是消减现场管道振动的有效措施之一,这种方法实施起来并不麻烦,故已日益受到国内压缩机用户的注意。本文着重阐述孔扳消减气流脉动的机理,并同时介绍计算结果及一些试验情况、鉴于在有关气流脉动和管道振动的一些文献中对这一问题的阐述甚不充分,本文为孔板消振问题提供了一个较详尽的论述。

    The methods for Teasonable determination of the structure parameters of the Cam-Rotor Vane Pump, and the Various effective steps taken in designing so as to minimise the flow fluctuation of the pump, and to gain the benefits of low noise and long life are introduced ih this article.

    本文主要介绍如何合理地确定凸轮转子叶片泵的结构参数,以及在设计上、结构上采取措施,可使泵的流量脉动减至最小.并获得噪声低,寿命长的良好结果.

     
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