变压器的差动保护因受到铁芯饱和引起的虚假差流的影响，其正确动作率较低，动作速度也较慢。
The differential protection for power transformers features less ratio of proper actuation and slow response, because it severely suffers from false differential current caused by core saturation.
文中分析了各种情况下的CT饱和及短路时的差流波形，提出了基于差流谐波波形特点的判别CT饱和的方案。
On this foundation , put forward a new method to distinguish CT saturation based on the characteristic of differential current harmonic waves.
它对粒度大、水分多、流态化性能差的物料不适用。
It is not suitable for the material of great granularity, big washiness and bad fluidity.
彼得心里正在猜疑之间，不知所看见的异象是什么意思，哥尼流所差来的人，已经访问到西门的家，站在门外？
17while Peter was wondering about the meaning of the vision, the men sent by Cornelius found out where Simon's house was and stopped at the gate.
彼得心里正在猜疑之间，不知所看见的异象是什么意思，哥尼流所差来的人，已经访问到西门的家，站在门外。
While Peter was wondering about the meaning of the vision, the men sent by Cornelius found out where Simon's house was and stopped at the gate.
流动性和流平性差-刷印和辊痕在干漆膜上很明显。
Mobility and poor leveling - Shuayin and roller marks on the dry paint film is very obvious.
研究了差压波动信号与两相流系统参数之间的关系。
Relations between differential pressure signal and two-phase flow parameters are studied in the dissertation.
对粒度大、水分多、流态化性能差的物料不宜选用。
But it is not suitable for the material of great granularity, big washiness and bad fluidity.
分数下来时离他理想的一流大学还是差很多。
When the scores came, he realized he did have a large gap to his ideal first-class university.
本文介绍一种带操纵面机翼的非定常跨声速流的有限差分计算方法。
A numerical method is presented for predicting unsteady transonic aerodynamic flow about aircraft wings with control surface.
本文研究了背景相减算法、差分法、基于光流场的运动估计和基于主动形状模型的目标跟踪算法。
In the thesis, the algorithm of background subtracting, frame difference algorithm, motion estimation based on optical flow field and object tracking based on active shape contour are investigated.
采用时间有限差分离散化方法求解超空泡流积分方程，得到了问题的数值解。
Solving integral equations of supercavitating flow based on the finite difference time discretization method, some numerical results are obtained.
本文给出了二维紊流射流掺混流场的有限差分数值计算方法。
This paper presents a numerical calculation with finite difference method for two-dimensional turbulent jets mixing flow field.
模拟了开门过程病房内外压差的变化，门附近的流场状况，以及进出门气流的变化状态，探讨了开门对污染物扩散的影响。
Simulates the changes of pressure difference, velocity field and the air flow in the door opening process, and discusses the influence to the contamination dispersion.
目的探讨二尖瓣狭窄伴反流的患者用压差减半时间(pht)法测量二尖瓣口面积的应用价值。
Objective To explore the clinical application of pressure half-time (PHT) method on rheumatic mitral stenosis coexisting mitral regurgitation.
通过减小腔内回流比例、增大正反方向流阻差，提高泵液效率与输出泵压、减小输出脉动。
By reducing the reverse flow in chamber and by increasing resistance difference of back-and-forth flow, higher efficiency, higher pressure and less output fluctuation could be expected.
流场求解时采用中心差分的有限体积方法对空间通量项进行离散，采用显式推进方法进行时间方向的积分。
The spatial flux terms are discretized by using central difference scheme and the time integration is performed by using explicit scheme in the flow solver.
采用差分方法求解了轴向面内加载时板条的流固耦合动力屈曲；
The solid fluid interaction dynamic buckling under in plane loading was solved by means of the difference method.
为了能在不太密的网格上捕捉到流场的细致结构，通常采用高阶精度的差分格式进行数值模拟。
In order to capture the subtle structure in the flow field using not too dense grids, the high order accuracy difference schemes are often adopted in numerical simulations.
实验发现环状流区高气速时的压差波动分维数大于1.5 ，在其它流型内都小于1.5。
The fractal dimension of the fluctuations are lower than 1.5 in all flow regimes besides the annular flow with great gas superficial velocity.
本文研究了在初始密度差极小的情况下由双扩散效应引起的异重流的流动特性。
A gravity current flow of double - diffusive effects has been investigated under the condition of very small density difference.
当前的工作流系统普遍缺乏柔性，造成其动态适应性和实用性差。
Current workflow management systems mostly lack the flexibility, so that their dynamical adaptability and practicality are poor.
螺旋桨模型简化为一个激励盘，即一个无厚度可穿透的圆盘，以给定的圆盘拉力载荷，即压强差来模拟螺旋桨滑流的效果。
The N-S equations with adoption of an actuator disk model are used to simulate the effect of turbo-propeller slipstream on high-lift systems.
研究还发现振荡流场长期输运作用数值模拟适用迎风差分格式，而不适用中心差分格式。
In addition, this study has discovered that the up-wind differencing but not the central differencing is fit to simulate the long-term transport of the oscillatory current.
本文采用两步隐式差分格式研究了自由边界载流等离子体柱的电阻螺旋模不稳定性。
In this paper we employ a two-step implicit difference scheme to study numerically THS resistive helical instability of current-carrying plasma column with free boundary.
本文用H型网格和特殊的差分格式数值求解了粘性不可压缩叶型绕流。
The numerical solution of incompressible viscous flow over an aerofoil is obtained by H-type grids and a special difference scheme.
采用有限差分数值分析方法，应用温度逐次更新处理技术对不同扰流孔下的椭圆管矩形翅片的肋效率进行计算。
The FDM numerical analytic method is applied to calculate the fin efficiency of elliptic tube with rectangular fins on which the disturbing holes were dug by using additional source term technique.
研究表明，后遮流板结构尺寸在不同压差条件下对指尖密封迟滞特性和刚度的影响表现出不同的特点。
The research work indicates that this influence of aft cover plate shows different appearances with different operation conditions.
计算中采用守恒变量型的NND差分格式和全流场捕捉技术；
The NND schemes in conservative variable type and shock capturing technology are used in the calculations.
计算中采用守恒变量型的NND差分格式和全流场捕捉技术；
The NND schemes in conservative variable type and shock capturing technology are used in the calculations.
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