查询词典 vector field

This research has studied the validity of vector diffraction field series solution and nonparaxial approximate solution.

本课题研究了矢量衍射场的级数解和非傍轴近似解的有效性。

The mechanism of performance enhancement is analyzed based on the electric field and Poynting vector distributions in array.

根据天线阵列电场和Poynting矢量分布，本文分析了该新型复合材料对其性能提高的机制。

In this study, the classification of Chinese Babesia spp. infective to cattle were carried out by the classical methods and molecular biotechnology, and investigated the vector ticks of an unidentified Babesia sp. isolated from Xinjiang province by the experimental transmission, and observed the developmental forms of Babesia sp. in the engorged Hyalomma anatolicum anatolicum females;We developed the indirect hemoagglutination test for Babesia bigemina, and evaluated its effect in the sero-survey;We made slow-released injection of imidocarb, and estimated its efficacy on the treatment and prevention of Babesia bigemina infection by the laboratory work and the field tests. The major results were presented as following:1. Discovery of a bovine Babesia sp.

本研究以牛的巴贝斯虫为研究对象，采用传统技术与分子生物学技术相结合的方法对在我国已分离的牛巴贝斯虫病主要病原进行了分类学研究，在实验室内运用蜱传播试验对分离于我国新疆的牛的巴贝斯虫未定种的媒介蜱及其传播方式进行了详细的研究，采用组织抹片方法对牛的巴贝斯虫未定种在小亚璃眼蜱饱血雌虫体内的发育过程进行了观察；建立了间接血球凝集试验诊断方法，并对其在血清学调查中的应用效果进行了考察；研制了咪唑苯脲缓释注射剂，并通过实验室工作和田间试验对防治效果进行了评价。

The process and result of the deriving provide theoretic basis for measurement of vector magnetic field based on magnetic.

这些推导与计算结果为利用磁光效应测量矢量磁场提供了理论依据。

The process and result of the deriving provide theoretic basis for measurement of vector magnetic field based on magnetic-optic effects.

这些推导与计算结果为利用磁光效应测量矢量磁场提供了理论依据。

The cutoff frequency of heteromophic waveguide in special structure is solved with the matching of electric and magnetic field on the invented boundary by vector partial differen-tial operator theory.

该文用矢量偏微分算子理论通过虚拟边界的电场和磁场的匹配求解特殊结构的异形波导的截止频率，这一方法可以精确而方便地求出几乎所有模式的截止频率。

Documents are defined in real number field using the form of vector, pattern recognition and mature calculate methods in other fields can be used, which improves calculability and maneuverability of nature language document obviously.

把文档以向量的形式定义到实数域中，能够使用模式识别和其它领域中各种成熟的计算方法，极大地提高自然语言文档的可计算性和可操作性。

In this paper it is shown that there are two vector constants of the motion for a charged particle in the central field of force.

证明了带电粒子在有心力场中运动时有两个守恒矢量。

The results indicated that chigger mites can serve as transmitting vector of field rodent type of HFRS and act as a reservoir host as well.

该螨可作为野鼠型HFRS鼠间的传播媒介，并可能兼有储存宿主作用。

Second, proceeding with the fact thatthe constructing vector wave functions of conventional circular cylindrical and sphericalvector wave functions are linear independent solutions to the electromagnetic field waveequations in biisotropic medium,spectral impedance boundary conditions are proposed forinfinitely long perfectly conducting circular cylinder and sphere coated with biisotropic media,respectively,which generalize the applicable range of planar structures and are suitable toanalyze the electromagnetic problems involving their counterpart structures.

所用的方法是在Fourier变换谱域中的一阶线性微分方程组理论和矩阵技术，提出了适用于Chiral媒质半空间辐射问题的耦合镜像原理(即镜像电流的振幅和相位是由Chiral媒质中的本征左、右旋圆极化波相互耦合来确定的)和适用于研究平面分层Chiral媒质电磁问题的一般性更高的分析方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。