查询词典 em

A sliding mode observer proposal has been presented for the multi～variable, nonlinear, strong coupling circular inverted pendulum syst em in this paper.

针对多变量、非线性、强耦合的环形倒立摆系统，提出了一种滑模观测器的方案。

To verify the validity of the method,the first step is calculation of the currents induced in the infinite long dielectric circular cylinder expoused to pulse EM wave.

首先用解析法计算无限长介质圆柱中脉冲波所引发的电流以验证计算方法，然后对核电磁脉冲照射下的二维和三维非

Researched influence of frequency on characteristic of electromagnetic wave transmission in tunnels, and analyzed characteristic of electromagnetic wave transmission in circular, arches and curved tunnels by method of metal wave guide, and gives approximate formulas of attenuation rate. Main conclusions we obtain are as follows: in circular,rches tunnels, if frequency is higher, attenuation rate is smaller, it is beneficial for EM waves to transmit, in curved tunnel, higher frequency, more attenuation rate ...

研究了频率对井下电磁波传输特性的影响，采用金属波导法分析了圆形、拱形及弯曲隧道中电磁波的传输特性并给出衰减率近似公式，得出主要结论：在圆形和拱形隧道中，频率越高，衰减率越小，越有利于电磁波的传播；在弯曲隧道中，频率越高，衰减率越大，不利于电磁波的传播；通过特性曲线与井下实验数据相比较得出在900MHz左右为井下无线通信系统传输信号最佳频段。

Claes Magnusson of Brand'em Communication AB has designed Nivea's promotional packaging for the Scandinavian market for many years. He changed to Korsn?

克拉斯的Brand'em通信抗体马格努森已设计妮维雅对多年来为斯堪的纳维亚市场推广包装。

Extraembryonic /ex·tra·em·bry·on·ic/胚外的 adj.Definition : Located outside of the embryonic body. External to the embryo proper, as the extraembryonic coelom or extraembryonic membranes.

部分神经细胞在轴突外围会被一些我们称为髓鞘细胞的细胞包围住，髓鞘细胞可使得神经细胞的冲动传递速度加快，因而形成跳跃式传递。

If the column width is defined in em, use that.

如果栏宽度定义在em，使用那个。

The transmission, reflection and phase properties of anisotropic thin films with columnar microstructures are derived from EM theory.

根据电磁场理论的矩阵分析方法推导了光波在具有柱状结构的双轴薄膜中的反射系数、透射系数和相位关系等光学特性。

Main contents include: Develop a new general algorithm to solve the complex transcendental equations in EM field.

主要内容包括：发展了一种求解电磁领域复杂超越方程特征根的通用算法。

" "He said I was to tell you some compliments, but I forgot 'em.

他说我告诉你一些赞扬，但我忘了'时间。

Em brane and the underlying compacted clay must be guaranteed in the structural design of the compo site liner.

在复合衬层设计中应保证土工膜与其下的压实粘土层的紧密良好接触，并避免土工膜单独作为衬层使用。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。