查询词典 imaginary point

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。

A meridian is an imaginary circle.

子午线是假想出来的一个圆圈。

The Arctic Circle is an imaginary line that circles the globe and indicates the southern border of the frigid zone near the North Pole.

北极圈是一个假想的线，各界全球并指出南部边界附近的寒带北极）。

On every hand curious figures were moving--watchers and peepers , without an imaginary circle, which they seemed afraid to enter--a dozen in all.

四处都有稀奇古怪的人在走动，有观望的，有窥探的。他们站在一个想象的圈子外面，似乎害怕走进圈子里面--总共有十二个人。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。