查询词典 imaginary

The transcendental characteristic equation is converted into a polynomial equation at the imaginary axis without any substitutions. This method needs less computation than the CTCR method.

该方法将含有指数项的特征方程在虚轴上转化为多项式方程进行研究，无需任何中间变量代换，处理方法简单，计算量小。

Specially, in Hilbert spaces, some necessaryand sufficient conditions are given in terms of the uniformly square integrability anduniform boundness of the resolvent on the imaginary axis respectively. Furthermore,we consider this robustness fordifferential equations with unbounded operatorin the delay term.

我们进一步研究了时滞项含无界算子的抽象微分方程的小时滞鲁棒稳定性，获得了一些充分必要条件，并应用所得结论讨论了具解析半群生成元的时滞系统。

According to analysis of roots locus,fast excitation tends to decrease damping of power systems which is controlled by AVR than slow excitation.But eigenvalues of power system are far from imaginary axis and strong damping is obtained when fast excitation system is added.

在高放大倍数的AVR控制下，快速励磁较慢速励磁更容易恶化系统阻尼；但是在同时附加励磁控制的情况下，快速励磁可使系统的机电模式根轨迹远离虚轴，机电模式阻尼较大；而慢速励磁下，系统机电模式根轨迹接近虚轴，机电模式阻尼较小，快速励磁优于慢速励磁。

It is proved by the analytical and numerical method that the modulus of the Z transform of a finite impulse response sequence has no extreme values at poles (with maximums along imaginary axis and no extreme values along real axis), and the negative second order derivative of the modulus normalized along frequency axis with respect to angular frequency has maximums at the poles.

根据实测瞬态电磁脉冲响应，较好地反演了导体球和导体长椭球的冲激响应，测得了它们的雷达截面和谐振频率。用解析与数值相结合的方法证明了有限冲激响应序列Z变换的模在极点无极值（沿虚轴有极大值，沿实轴无极值），而沿频率轴的归一化值对角频率的负二阶导数在极点有极大值。

The equator is an imaginary circle around the earth.

赤道是假想的环绕地球的大圆。

Following the edge of an imaginary circle that has a radius of 8 or 9 feet creates the ideal curve of a ramp.

后一个假想的循环，有8或9英尺半径的优势创造了一个理想的曲线坡道。

An imaginary great circle on the earth's surface passing through the North and South geographic poles.

过两极的大圆一个通过地球表面南北两极的假想线圈。

A is an imaginary circle around the middle of the earth at an equal distance from the North and South poles.

本文转摘的目的仅为更好地利用网络传播有益信息，无任何商业意图。

Network printing in all forms is not only imaginary circle only one reference to the rate of 50% of cases shown by dots to divide the shape can be divided into: square, round, diamond three.

印刷中的网点形状不只是大家想象中的单单圆形一种，以50％着墨率情况下网点所表现出的形状来划分，可以分为：方形、圆形、菱形三种。

An imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator.

穿过地球南北极且与赤道垂直的假想的地球表面的大圆。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切