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.
其部分原因在于这样一个事实：美国的电话服务是一流的，而邮政服务的效率则差一些。
This is due partly to the fact that the telephone service is superb here, whereas the postal service is less efficient.
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.
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.
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.
主要地质环境问题集中表现在斜坡稳定性差及滑坡、崩塌、泥石流等物理地质作用明显。
Main geology environmental issues include slope unstableness, geologic and physics influence of landslip, collapse, and debris - flow.
主要用于一些高压差或流阻小的工况，也可作为釜底放料阀使用。
Mainly used for high pressure or flow resistance of the working conditions, but also can be used as the bottom discharge valve.
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.
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.
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.
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.
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.
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.
选用三种颗料状物料，在四种不同倾斜度的斜管中测定了不同负压差和固体流率条件下的气体流率。
The experimental data of gas flow rate in the bed with four slant angles and three kinds of particle materials are obtained.
采用差分方法求解了迭层板的非线性流固耦合动力响应；
The nonlinear dynamic solid fluid interaction response is solved by means of a difference method.
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.
某电站煤粉锅炉采用旋流燃烧器，在运行中燃烧器出现调节能力差的问题。
A power plant pulverized boiler used swirling combustor and happened combustion regulation worse during the operation.
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.
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.
运用新近的解析-数值势流理论方法，生成正交数值网格，用差分法计算出平面二维流场。
The recent potential flow theory and finite-difference method are applied to generate orthogonal numerical grids and to compute two-D plane flow fields.
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.
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.
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