Introduction , network laws and components , introduction to circuit analysis , network node voltages and mesh currents , network properties ? thevenin ' s and norton ' s equivalent sources , operational amplifiers , equivalent circuits for three - terminal networks and two ? port network 简介、网路的组件和网路定律、网路分析与节点电压和纲目电流，网路的性质-载维宁和诺顿的等效电源、运算放大器、三接端网路的等效电路与双埠网路。
Such convenience and fast to built , and unrestricted by the time and space , this network can be applied in succors , sessions , militaries , explorations and objects monitor of long distance or dangerous environments . besides it can be used to extend the terminal network 无线移动adhoc网络组网方便、快捷,不受时间和空间限制,既可应用于救援、会议、战场、探险、远距离或危险环境中的目标监控等场合,还可用于末端网络的扩展。
The power - electrical impedance equivalent circuit of each separate module is analyzed and more concise designing rule is educed from it by connecting corresponding four - terminal network in series and taking the material and section area of the separate module as variable 本文分析了各分离组件的力电阻抗等效电路，并将对应的四端网络相互串联，以分离组件的材料和截面积为变量，经过分析得出具有分离组件的振动件不管材料是滞相同，设计时均可将多个分离口组件看为一个体的设计规律。
Based on the transfer - matrix method , the general expressions of equivalent four - terminal network parameters of varying section torsional horn are derived , the relations between frequency equation and both the rotational velocity amplification and that of the surface tangential velocity of stepped type torsional ultrasonic horn with transitional section of cosine - like type are obtained 摘要基于传递矩阵算法，推导出了变截面杆扭转振动时等效四端网络参量的一般表达式，研究了带类余弦过渡段阶梯形变幅杆扭转振动频率方程与角速度放大倍数及外表面切向速度放大倍数等的关系。
This paper describes a reconstructive algorithm which is based on network theory for electrical capacitance tomography technic . there are twelve electrodes in the system . the permittivity distribution of flow with two components within a pipeline is reconstructed . assume the permittivity distribution of the region to be reconstructed . then whole measured area is discretized into a network composed of capacitance . the measurement circuit which contains a pair of source electrode and detecting electrode is taken as a four - terminal network . the across admittance of the four - teminal network is proportional to the capacitance between the source electrode and the detecting electrode . modify the distribution of the permittivity according to the difference between the calculated capacitance and measured capacitance . the experimental results show that this algorithm is effective and can coverge 本文描述了一种用于两种成份的流体成像的12电极电容层析成像新方法.该方法基于电路的网络理论，首先对重建区域假定一个介电率分布，用电容网络作为离散化模型，将每一个源电极和探测电极对组成的测量电路看作一个四端网络，该四端网络的跨导与源电极和探测电极之间的电容值是线性关系，这个电容值和测量得到的电容值之间存在误差，根据这个误差对修正介电率分布.通过对不同介质分布作的模拟实验结果，证实了该算法是有效的，收敛的
Large scale union , merger and recompose bringing by multinational corporations compact our country ' s medicine industry , commerce placing and medicinal service . on the other side , investment in medicine industry by some strong economic strength , other industry ' s companies intensify the competition of the industry especially in the area of medicine circulate . the competition finds expression in contesting for sale channel , terminal network and strength 一方面，跨国公司在国内大规模地实施联合、兼并和重组，冲击医药工、商业和医疗服务等领域，另一方面，国内诸多有实力的公司也纷纷投资或增资该行业，进一步加剧了整个行业内部竞争，药品流通领域是竞争的焦点，主要表现在渠道、终端网络和实力的争夺与较量上。
Its predecessor was a company following a substandard operational procedure : a disqualified sales team although it was somewhat fully staffed ; in spite of the comparatively extensive commercial and distribution terminal networks , the sales system featured broad coverage but low output , and the sales team presented low quality while a great deal of them were engaged in part - time jobs 老公司是一家运作非常不规范的企业,有一支比较完整但不正规的销售队伍,在全国有比较广泛的商业和销售终端网络,销售体系具有广覆盖低产出和销售队伍具有素质低且多兼职的特点。
