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   flow power 的翻译结果: 查询用时:0.176秒
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flow power     
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  流量功率
     On the basis of flow power characteristic curves of a centrifugal pump, the incremental method was adopted to derive optimum load distribution between pumping u- mits, i. e. flow optinvization.
     本文依据离心泵流量功率特性曲线,应用微增率法,求出水泵机组间最优负荷分配,即流量优化分配,从而使水泵机组的运行达到节能目的。
短句来源
  流体幂
     The systematical analyses and derives flowing rate distributions at the flow front in center gated disk shaped cavity on the Newton flow,power law flow and Bing ham flow, which are of great importance in Power Injection Molding (PIM).
     系统地推导了PIM中有重要价值的牛顿流体 ,幂律流体 ,宾汉流体在圆片形模腔中流体前沿的速率分布
短句来源
  流动作功
     Ecological Optimization Performance of a Fluid Flow Power Device
     流体流动作功装置的生态学优化性能
短句来源
     The Effect of Flow Resistance and Friction on Performance of a Fluid Flow Power Plant
     流阻和摩擦对流体流动作功装置性能的影响
短句来源
     The conclusions obtained may provide some new theoretical bases for the optimal design of a fluid flow power plant.
     所得结论可为流体流动作功装置的优化设计提供些新理论依据
短句来源
  流量液压
     Design of High Pressure and High Flow Power Unit
     高压大流量液压泵站的设计
短句来源

 

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      flow power
    Experimental manipulation of flows simulated `peaking flow' power generation allowing characterization of micro-habitat selection (depth, velocity, substrate) on a seasonal basis and in relation to flow variation.
          
    The velocity or flow power dependence of bed-form wavelength in surge deposits is related to a velocity dependence of wavelength of internal waves in the turbulent surge.
          
    Heart rate, systolic pressure and microvascular flow power spectral analyses were performed using fast Fourier transformation.
          
    The results of theoretical and experimental studies allowing the use of Cherenkov superradiance for the generation of electromagnetic pulses with a peak power higher than electron flow power are reported.
          
    Cherenkov superradiance with a peak power higher than electron flow power
          
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    Some standards of laser power and energy at NIM are summarized. They are the cavity radiometer and the water flow power meter for laser power measurement, the cone calorimeter and the volume-absorbing calorimeter for laser energy measurement. Most of them are based on electrical substitution principle and calibrated by electrical power or energy.The systems for calibration and the devices for stabilizing the lasers are described briefly. Their operating ranges and accuracies are also given.

    本文综述了中国计量科学研究院研制的激光功率和能量标准。有测量激光功率的空腔型辐射计和流水式功率计、测量激光能量的锥型能量计和体吸收型能量计。它们大多是基于电替代原理,用电功率和电能进行校准。文中简述了标定装置和激光束功率稳定装置。给出了它们的工作范围和准确度。

    (1) Based on a number of studies, the at-a-station and downstream values of exponents in the equations of the hydraulic geometry (Qs=αQα, B=βQb, V=xQc, J =ξQd)are summarized as follows.Average At-a-Station Relation Average Downstream Relation( 206 gaging stations on various ( Bankfull or mean annualpermanent rivers ) flow in 70 permanent rivers )The aforementioned values show that the changing rates in width B, mean velocity V and water-surface slope J at a given cross section with discharge Q differ appreciably...

    (1) Based on a number of studies, the at-a-station and downstream values of exponents in the equations of the hydraulic geometry (Qs=αQα, B=βQb, V=xQc, J =ξQd)are summarized as follows.Average At-a-Station Relation Average Downstream Relation( 206 gaging stations on various ( Bankfull or mean annualpermanent rivers ) flow in 70 permanent rivers )The aforementioned values show that the changing rates in width B, mean velocity V and water-surface slope J at a given cross section with discharge Q differ appreciably from those in a downstream direction. The variance is resulted from the difference of the changing rates for sediment load Qs with discharge Q in both cases.(2) When the incoming discharge changes, both the channel capacity(i. e., cross-sectional area A) and flow power VJ will also change.Based on the data of the Yangtze River, the at-a-station and downstreamvalues of exponents ηand μin the equationsVJ/A=ζQη and S = xQμ ( S issediment concentration ) are obtained as follows:At a Given Cross Section In a Downstream Direction From the corresponding values ofη and μ above, it is obvious that the difference between the at-a-station and downstream changing rates for sediment concentration S with discharge is the basic reason why the exponent nnnnnnnnnnnnn in the cross section relation differs obviously from that in the downstream relation. Thus, a formula of the hydraulic geometry takesthe form , where the values of exponents x1 and x2 areobtained from the data of the Yangtze River as follows.At-a-station In a Downstream Direction(3) By the comparison of the flow power V3 and the hydraulic geometry of the cross sections B~(1/2)/H ( H is the mean depth ) between single and braided river stretches based on the data of 16 braided river reaches in the lower reach of the Yangtze River, it is seen that when a stream is braided, the cross section at the entrance of the branch tends to be narrower and deeper, thus the frictional resistance will decrease, the slope of the water surface will be steeper and the sediment carrying capacity will increase locally.

    从常流式冲积河道断面的和沿程的河相关系的比较中,可见两者之河宽、平均水深及坡降随流量的变率存在着显著的差异,其原因在于两者来沙量随流量变率的不同.据此,引出长江冲积河床断面的和沿程的两组河相关系.并通过长江下游16个分汊河段各汊道口门断面的和汉道口门上方单一河段断面的动力形态的比较分析,得到河流通过分汉,水面比降加陡,断面形态趋向窄深,从而水流输沙能力得以局部提高的认识.

    The power flow and back flow power of PX type differential infinite variable speed reducers are discussed, based on the design for driven shaft speed at 0-500 r/min, 0-250 r/min and-100-+100 r/min respectively. Probably there may be 12 combinations and the combination ee'(1) discussed is the best one of them. The power through P type infinite variable speed reducer differs with different power flow(whether the back flow power is positive or negative). In this paper, formulas or...

    The power flow and back flow power of PX type differential infinite variable speed reducers are discussed, based on the design for driven shaft speed at 0-500 r/min, 0-250 r/min and-100-+100 r/min respectively. Probably there may be 12 combinations and the combination ee'(1) discussed is the best one of them. The power through P type infinite variable speed reducer differs with different power flow(whether the back flow power is positive or negative). In this paper, formulas or calculating the power ratio P_(f'e) and total efficiency η are given and the efficiency curve is drawn by the aid of computer. On the basis of above analysis, some conclusions will be useful for the design of speed reducer of this type.

    本文通过输出轴转速为0-500 r/min、0-250 r/min和-100-+100 r/min的PX系列差动无级变速器的设计,分析了该传动装置中存在的功率流及回流功率的情况、该装置可能出现的十二种组合及最佳方案ee'(1)联接;分析了不同的功率流向(正的和负的功率回流型)流经P型无级变速器的功率是不同的;导出了功率比P_(f/e)和总效率η的计算式,利用计算机画出了效率曲线;在以上分析的基础上作出了一些很有意义的结论,为差动无级变速器的设计提供了重要的理论依据.

     
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