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According to the summation Fourier series of three kinds of methods, the relationships among the harmonic performance, vertical offsets and modulation index are obtained in the paper.

根据线电压的谐波分量理论表达式,获得了载波之间竖直方向的交叠量、幅值调制度和多电平逆变器谐波性能指标之间的规律。

The new foreign-policy supremo also needs to be a person of weight, which points to the need for both long experience and a background of taking the diplomatic world seriously.

新的外交政策首脑也应该是个有分量的人物,这个人需要满足两点要求:一要有长期的外交经验,二要在过去的工作中表现出对外交的足够重视。

Precision instrument: Mode of relative power of %26plusmn;0.02dB or %26plusmn;0.5%: Measuring %26plusmn;0.02dB or %26plusmn;0.5% are inside limits; Exceed measure limits to installed at 0 o'clock for %26plusmn;0.04dB or %26plusmn;1%: In the %26plusmn;0.5% of the most acute limits complete scale Power consults power outputs: 100mW precision:%26plusmn;1.2% The face plate after general technology index outputs: Imitate 0-1V(does not take digital filter wave) or calibration coefficient is amended, 1K%26Omega; outputs impedance, BNC connects contact voltage: 220V and 240Vac,+ 5%~10%, 48~66Hz power asks: Weight of the biggest 8W(10VA): Suttle 2.6 kilograms of dimension: 88mm %26times;212mm %26times;273mmgrows

精度 仪器:%26plusmn;0.02dB或%26plusmn;0.5%相对功率模式:在测量规模内为%26plusmn;0.02dB或%26plusmn;0.5%;超出测量规模为%26plusmn;0.04dB或%26plusmn;1%零点设置:在最灵敏的规模全刻度的%26plusmn;0.5%功率参考功率输出:100mW 精度:%26plusmn;1.2%一般技术指标后面板输出:模拟0-1V或校准系数批改,1K%26Omega;输出阻抗,BNC连贯头电压:220V和240Vac,+5%~10%,48~66Hz 功率要求:最大8W(10VA)分量:净重2.6公斤尺寸:88mm%26times;212mm%26times;273mm长

Only by using the anisotropic media, e.g. a model with symmetric axis of arbitrary orientation, computing the response, can we obtain the detailed anisotropy information hidden in the radial and transversal receiver function.

只有采用具有任意方向对称轴的横向各向同性介质等各向异性模型,通过计算模型的介质响应,才可以充分提取出接收函数径、切向分量及其方位变化中包含的各向异性信息。

In this paper we separate the Hamiltonian into three parts: a spherical symmetry Hamiltonian; a z-component of the angular momentum operator, and a non-spherical symmetric potential as the perturbation operator, and provide a propose method by separating the potential containing squared magnetic field B^2 into two parts spherical symmetric and non-spherical symmetric ones so that the first-order energy correction due to the non-spherical symmetric potential is zero, and the second-order correction due to B^2 can be obtained by a simple variational method.

采用变分法和微扰法相结合的方法,把高强度磁场中氢原子的哈密顿H分为三部分:球对称哈密顿;z分量角动量算符相应部分和非球对称势微扰,并用一种特别规定的分解法将哈密顿H中含磁场平方项的势能分解为球对称与非球对称两部分,且使非球对称部分引起的一级修正能量值为零,并采用一种简便的变分法直接求出B^2对能级的二级修正值。

This paper presents the principle of symmetry vector and introduces the design process of d-q vector controller.

通过分析对称分量法变换原理,以及在TSC+TCR混合型静止无功补偿装置中的应用,介绍了采用矢量变换控制的无功补偿装置的设计。

In the symplectic geometry space, which consist of the original variables, the displacement, electric potential, magnetic potential, and their duality variables, lengthways shearing stress, electric displacement and magnetic flux, the magnetoelectroelastic solids problems are led into symplectic solution system, so the effective methods of mathematical physics like the separation of variables and symplectic eigenfunction expansion can be employed to solve the problem.

在由原变量-位移、电势和磁势以及它们的对偶变量-纵向的剪应力、电位移和磁感应强度分量组成的辛几何空间,将电磁弹性固体问题导入辛求解体系,从而使有效的数学物理方法如分离变量法及辛本征向量展开法可以用于该问题的求解。

This is a reliable approach in developing a scale of symptomatology for evaluating efficacy of drugs.

本法建立的消化不良症状疗效评分量表,结果可靠,可为同类研究提供参考。

A point system assigns a value to portions of all sorts of foods to help tabulate—and limit—daily consumption.

一种特定的算分法用来估算每类食物的分量以便限制每天的进食。

TAIL WIND, The wind component relative to the airplane direction and coming from behind the airplane.

顺风,飞机后方的来风在飞行方向上的分量。[1]。英汉对照民用航空词典

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。