查询词典 dielectric

The numerical results show that lossy dielectric-load can heighten the start oscillation current of absolute instability, and increase depends on the magnetic field strength and the perpendicular-to-parallel velocity ratio of the electrons; The thickness of the lossy waveguide increases the start oscillation length of backward wave oscillation.

结果表明：损耗介质的加载，可以提高绝对不稳定性起振电流，提高的幅度依赖于工作磁场偏离饱和磁场的程度、电子束横纵速度比等；增加波导损耗介质加载的厚度，可以提高竞争模式的回旋返波起振长度。

This paper, with the analysis of the propagation characteristics in a lossy cylindrical waveguide and using small-signal theoretical dispersion relation, presents study on the device stability with influence of the absolute instability and the backward wave oscillation in TE01-mode lossy dielectric-load gyrotron traveling wave amplifier.

摘要该文从分析损耗介质加载金属圆波导中电磁波传输特性出发，应用回旋行波管放大器小信号色散方程，研究损耗介质加载结构TE01模回旋行波管放大器绝对不稳定性振荡和回旋返波振荡对器件稳定性的影响。

The important parameters for the wave absorption effects are electromagnetic loss factor, complex dielectric constant , complex magnetic conductivity.

评价吸波效能的主要参数是损耗因子、复介电常数、复磁导率。

The important parameters for the wave absorption effects are electromagnetic loss factor, complex dielectric constant, complex magnetic conductivity.

作者用简单的等效电路分析了材料吸波机制，阐明了这些参数的物理意义，定性地给出了吸波材料的设计方向。

The calculated results indicate that the dielectric function, complex reflectivity index and absorption spectra of the crystal are related to the electronic structures of the crystal.

介电函数的虚部、吸收光谱、折射率等的峰值位置存在一一对应关系，这与电子从价带到导带的跃迁吸收有关。

The effect of external stress on dielectric function and conductivity is consistent with the effect on absorption spectrum.

外压对介电函数和导电系数的影响计算结果与对吸收光谱的影响是一致的。

The accelerative GMRES with the fast Fourier transform for solving electromagnetic scattering of three dimensional dielectric bodies is developed.

于是，我们使用结合快速傅立叶变换的GMRES加速技术来计算三维任意形状的介质散射问题。

In this paper, the new accelerator concept- dielectric wall accelerator, its developments and key technology are introduced.

本文介绍了一种新型加速器概念，介质壁加速器（DWA—Dieleetric Wall Accelerator），及它的发展状况和关键技术。

The influences of forming solid solution, generating new compound and addition of flux on sinterability, phase-structure and microwave dielectric properties of zinc titanate were analyzed.

对钛酸锌介电陶瓷的改性研究进行了综述，分析了形成固溶体、生成新的化合物和添加助熔剂对钛酸锌陶瓷的烧结性、相结构和微波介电性能的影响。

052 Describes and claims a body of polycrystalline dielectric ceramic material having a lead zirconate--lead titanate--lead stannate composition falling within the area A B C E F of the triaxial diagram 1d of the drawings accompanying this specification and containing at least one substitutional additive ingredient selected from the group consisting of elements having respective ionic radii sufficiently close to the ionic radius of one of the elements lead, tin, titanium, zirconium and oxygen to permit of substitution, and a valence state differing from that of said one element by less than three units, the aggregate quantity of additive ingredient amounting to from 0.1 to 5 percent of the replaced ion on an atom basis, each additive ingredient present in said material being in ionic form and substituting for a finite percentage of the ions of a particular one of the elements lead, tin, titanium, zirconium and oxygen with respect to which it conforms with regard to ionic radius and valence state, said additive ingredient replacing a quantity of said elements having in the aggregate an equal number of valence units.

参考译文：第 1012052 号专利说明书介绍一种含有锆酸铅，钛酸铅，锡酸铅的多晶陶瓷介质材料，其组成在说明书附图 ld 三元相图中处于 A B C E F 区域内，该组成至少还含有一种置换添加物，这种添加物从一组离子半径分别接近于铅，锡，钛，锆，氧的元素中选出，以利于互相置换，而与上述一种元素化合价之差应小于三价。该添加物的总量为被置换离子的 0.1%~5%克原子。上述材料中的每种添加物是以离子形式存在的，它以一定的百分数置换铅，锡，钛，锆，氧中的某一元素的离子。添加物在离子半径和价数上必须类似于上述任一元素，并且置换添加物的量与被置换的元素在总体上具有相等的化合价数。本句由两个简单句构成，一个主句，另一个是定语从句。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。