双

Power-law fluid is used to describe the Non-newtonian rheological property of the produced fluid in a polymer-driving well; the governing equations, boundary and initial equations of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is established in bipolar coordinates system; formulas of instantaneous flow rate and stress distribution on the outwall of the inner cylinder of the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially are established.

在理论上，用幂律流体模型描述了聚合物驱油井产出液的非Newton流变性；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中非定常流的控制方程及边界条件和初始条件方程；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中流动时瞬时流量和流体在内管壁上的压力分布计算公式。

Meanwhile,the relation among Fresnel biprism's base angle,refractive index,and the radius of incident femtosecond pulse beam was obtained.

基于单发频率分辨光学开关法的飞秒脉冲测量系统，理论推导光束经菲涅尔双棱镜分光与聚合产生的时间延迟，得到菲涅尔双棱镜底角、折射率和脉冲光斑半径的关系。

With internationally latest studies, the paper also proposes some biquadrate filters which are capable to perform the functions of second-order low pass、 high pass、 band pass、 band stop、 all pass filtering by selecting one of the three inputs or their proper combinations from the same configuration, furthermore whose natural frequency and the quality factor can be tuned independently. Then a continuous-time biquadratic filter using CCCII is proposed, which can be used in hearing aids and in other analog signal processing applications. Lastly a current mode and a voltage mode novel n-order filters of multifunction are presented. Not all both of the n-order filters are electronic tunable,but also they are integrated conveniently and compatible with VLSI technology.

尽量的全面归纳以电流控制传送器为有源器件的有源网络模拟电路、模拟信号处理电路，借鉴国内外最新研究成果，提出两种基于CCCⅡ的双二阶滤波器，这些电路在不需要改变电路结构的情况下，能同时实现低通、高通、带通、带阻或全通多种滤波功能，并且滤波器的特征频率ω_0和品质因数Q可实现独立调节；其中一种基于CCCⅡ的双二阶滤波器，首次提出将CCCⅡ应用于可编程助听器领域；最后设计了两种高阶滤波器，电压模式和电流模式各一种，这两种滤波电路均能实现多种滤波功能，能实现滤波器参数的电调谐，具有易于集成等优点。

It is also shown that the biquadratic coupling falls off much more rapidly withincreasing temperature than the bilinear one.

此外，我们的结果显示双二次耦合强度随温度升高的衰减强于双线性耦合强度随温度升高的衰减。

Both the bilinear and biquadratic coupling strengthsare observed to be very sensitive to the temperature.

实验还表明不论是双线性还是双二次耦合强度都对温度十分敏感。

When the mixing strength is large enough we find that theoscillation period of the intrinsic biquadratic term is equal to half of that for thebilinear term.

当s-d混合作用强度足够大时双二次耦合强度的振荡周期是双线性项振荡周期的一半。

Those interlayer couplings have been found experimentallycontaining both the bilinear and the biquadratic terms.

在这种材料中观察到的层间耦合既有双线性项又有双二次项。

The main contents and contributions include: 1 On basis of the defined biorthogonality, we propose several biquadratic cost functions for array-signal blind separation.

主要的研究内容和成果包括以下几个方面：1）利用定义双正交原理提出提出了多种用于阵列信号盲分离双二次代价函数。

By using such exact Green's functions,we obtain boththe bilinear and biquadratic coupling strengths of the metallic magnetic multilayers.

使用这一严格格林函数，我们求出了双线性和双二次耦合强度。

In the second part,we studyboth the bilinear and the biquadratic coupling in the magnetic metallic multilayerswith the Anderson s-d mixing model.

在第二部份中我们使用Anderson s-d混合模型研究了磁性金属多层膜中的双线性和双二次耦合。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。