阻抗系数,resistance coefficient
1)resistance coefficient阻抗系数
1.A pipe hydraulicresistance coefficient model for natural gas pipeline network is established based on positive and negative analytic approach.采用正反分析法建立了天然气管网管段阻抗系数优化反演的数学模型。
英文短句/例句
1.The Optimal Inversion Research of Natural Gas Pipeline Network"s Hydraulic Resistance Coefficient天然气管网管段阻抗系数优化反演研究
2.The System of the Resolution to the Parameters of Electrochemical Impedance Spectrum with Multi-time Constant;多个时间常数电化学阻抗谱的参数解析系统
3.Relation between Parameters of Electrical Impedance Spectroscopy and Frost Hardiness in Pinus Bungeana Stems and Needles during Frost Hardening;抗寒锻炼期间白皮松茎和针叶的电阻抗参数与抗寒性关系研究
4.CAT System for Microwaves and Resistance Parameter微波计算机辅助测量系统及阻抗参数的测量
5.Code for measurement of sound-absorbing coefficient and specific acoustic impedance of standing-wave meter驻波管法吸声系数与声阻抗率测量规范
6.Research and Development of the 32 Channels EIT System;电阻抗断层成像数据采集系统的设计与研究
7.Research on lead-acid battery impedance parameters identification system based on LabVIEW基于LabVIEW的铅酸蓄电池阻抗参数辨识系统研究
8.Determination of Li-ion Diffusion Coefficient via Coulometric Titration and Electrochemical Impendence Method库仑法和电化学阻抗法测量LiFePO_4锂离子扩散系数
9.Reflection coefficient changing of acoustic impedance interface during oilfield development油田开发中声波阻抗界面反射系数的变化规律
10.resistance-temperature coefficient (of resistance thermometer sensor)（热电阻的）电阻温度系数
11.damping coefficient减幅系数，阻尼系数
12.drag coefficient牵引系数，阻力系数
13.electronic countermeasure resistant communication system电子对抗阻力通信系统
14.The specific resistance of iron is not so small as that of copper铁的电阻系数不如铜的电阻系数那样
15.blade profile drag coefficient桨叶剖面阻力系数，叶型阻力系数
16.Conducting and antistatic rubber--Determination of resistivityGB/T2439-1981导电和抗静电橡胶电阻率(系数)的测定方法
17.The Fundamental Research in Multichannel Data Acquisition System of Magnetic Induction Tomography;多通道磁感应电阻抗断层成像数据采集系统基础研究
18.intrinsic impedance内在阻抗;内阻抗;内禀阻抗;本征阻抗;固有阻抗
相关短句/例句
uncertain resistance co-efficient虚阻抗系数
3)general resistance co-efficient总阻抗系数
4)coefficient of diffusion impedance扩散阻抗系数
5)Filter impedance index STI过滤阻抗系数
6)impedance-matching coefficient阻抗匹配系数
延伸阅读
星接阻抗和三角接阻抗的变换星接阻抗和三角接阻抗的变换transformation between starc-onnected and delta-connected impedancesx ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2)当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是Z二一32丫，Z丫一Z△/3
