查询词典 electrical conductivity

The electrical properties of the films were characterized by their room temperature electrical conductivity and the activation energy.

利用薄膜的暗电导和激活能对硅薄膜的电学特性进行了表征。

The company is specialized in producing silicon rubber products manufacturer, produces silicon胶制品series of products with high transparency, high-strength liquid injection molding silicone rubber production technology, the introduction of more high-precision liquid silicone fired rubber plant, the establishment of a high standard of medical silicone rubber air-conditioning spare parts production workshop; products in addition to a general heat-resistant silicone rubber, cold resistance, weatherability, corrosion resistance and good electrical properties, but also can have Good electrical conductivity, high hardness and high tear strength and other properties.

本公司是专业生产硅橡胶制品的制造商，公司生产硅胶制品系列产品具有高透明，高强度的液体注射成型硅橡胶的生产工艺技术，引进更高精度的液态硅橡胶射出机台，建立高标准的医用硅橡胶零配件生产空调车间；产品除具有一般硅橡胶的耐热性、耐寒性、耐候性、耐腐蚀性及优良的电性能外，还可以有良好的导电性、高硬度和高撕裂强度等性能。

The newly established large Sunchang Products Co., Ltd. is the first professional production LSR liquid silicone injection molding rubber products manufacturer, produces silicon胶制品series of products with high transparency, high-intensity LSR Liquid injection molding silicone rubber production technology, the introduction of more high-precision liquid silicon fired rubber plant, the establishment of a high standard of medical silicone rubber parts production clean rooms; products in addition to a general heat-resistant silicone rubber, Cold resistance, weatherability, corrosion resistance and good electrical properties, but also can be a good electrical conductivity, high hardness and high tear strength and other properties.

刚刚成立的大淳昌制品有限公司是国内率先专业生产LSR液体注射成型硅橡胶制品的制造商，公司生产硅胶制品系列产品具有高透明，高强度的LSR液体注射成型硅橡胶的生产工艺技术，引进更高精度的液态硅橡胶射出机台，建立高标准的医用硅橡胶零配件生产无尘室；产品除具有一般硅橡胶的耐热性、耐寒性、耐候性、耐腐蚀性及优良的电性能外，还可以有良好的导电性、高硬度和高撕裂强度等性能。

The Company is the first professional production LSR liquid silicone injection molding rubber products manufacturer, produces silicon胶制品series of products with high transparency, high-intensity LSR liquid injection molding silicone rubber production technology, introducing Lim more high-precision liquid silicon fired rubber plant, the establishment of a high standard of medical silicone rubber parts production clean rooms; products in addition to a general heat-resistant silicone rubber, cold resistance, weatherability, corrosion resistance and Excellent electrical properties, but also can be a good electrical conductivity, high hardness and high tear strength and other properties.

本公司是国内率先专业生产LSR液体注射成型硅橡胶制品的制造商，公司生产硅胶制品系列产品具有高透明，高强度的LSR液体注射成型硅橡胶的生产工艺技术，引进更高精度的Lim液态硅橡胶射出机台，建立高标准的医用硅橡胶零配件生产无尘室；产品除具有一般硅橡胶的耐热性、耐寒性、耐候性、耐腐蚀性及优良的电性能外，还可以有良好的导电性、高硬度和高撕裂强度等性能。

Magnetic Resonance Electrical Impedance Tomography is a new, noninvasive conductivity imaging modality that integrates current density imaging and traditional electrical impedance tomography.

基于磁共振成像系统的生物电阻抗成像技术是近几年发展起来的新型非入侵式成像技术。

Electrical insulators having high thermal conductivity must be used, but, since most electrical insulators don't conduct heat well, special insulators such as hard anodized aluminum, beryllium oxide, specially filled epoxy resins, sapphire, or diamond must be used to couple junctions to the heat sink.

必须使用高导热系数的绝缘体，因为大多数绝缘体都不能很好地传导热量，所以必须使用硬质阳极化铝、氧化铍、特别填充的环氧树脂、蓝宝石或者金刚石等类的特殊绝缘材料来实现与散热器的接触。

Among the various conductive fillers, carbon fibers have been proved to be a good candidate for EMI shielding. However, the electrical resistivity of a carbon fiber is much higher than the metal filler, so it must to use a greater number of carbon fibers in order to achieve the same shielding effect. In recent years, the Electroless plating is the new techniques of surface treatment of carbon fibers used to improve the electrical conductivity of carbon fiber. The copper-coated and nickel-coated carbon fibers have been proved to be a good candidate for EMI shielding.

导电高分子填充材料多使用碳纤维、碳黑及金属粉末，其中碳纤维具有高导电性、低密度及复合材料之补强特性，故本研究碳纤维作为填充材料，将碳纤维经过无电电镀处理，使其表面分别披覆金属镍及铜，增加碳纤维之导电度，混掺於聚丙烯高分子基材中，制成具有电磁波屏蔽功能之高分子复合材料，研究不同高分子成型方式与金属镀层对於碳纤维电学性质及复合材料电磁波屏蔽效益之影响。

Because iron is recognized the major constitute of the Earth's core, and the Bloch-Grüneisen formula holds true in the solid-liquid mixed phase region, the electrical conductivity distribution in the Earth's core was calculated by combining with the temperature structure of the Earth's core with the PREM model. The electrical of conductivities of the Earth's core vary from 4300Ω〓cm〓 to 8400Ω〓cm〓, and increase with the pressures or depth.

既然Bloch-Grüneisen公式被证明在地核的温度、压力条件下及铁的固-液混合相区仍然有效，对于主要成分由ε-铁组成的地核，就允许用Bloch-Grüneisen公式并结合地核的温度结构以及PREM模型计算整个地核（包括液态外地核与固态内地核）的电导率分布。

Air temperatures;Atmosphere;Biological;Chemical;Classification;Classification systems;Climate;Contamination;Definition;Definitions;Degree of sharpness;Electric appliances;Electrical components;Electrical engineering;Electrical equipment;Electrically-operated devices;Electronic equipment and components;Environment;Environmental and safety engineering;Environmental condition;Environmental conditions;Environmental effects;Environmental factor of influence;Environmental testing;Humidity;Influence quantity;Limits;Long-time storage;Mechanic;Open air climate;Parameters;Preferred sizes;Preferred value;Temperature;Testing;Weathering

中文主题词生物的；参数；环境影响；锐度；露天气候；优先尺寸；影响的环境因素；优选值；长时存储；影响量；电气元件；空气温度；化学的；气候；污染；分类系统；湿度；环境条件；环境条件；极限；力学；电子设备及元件；电驱动装置；环境试验；电气设备；定义；温度；环境与安全工程；风化；分类；电气工程；大气；电气器具；试验；环境

PART 1 UNIT 1 B Electrical and Electronic Engineering Basics A Electrical Networks ———————————— 3 Three-phase Circuits A The Operational Amplifier ——————————— 5 UNIT 2 B Transistors A Logical Variables and Flip-flop —————————— 8 UNIT 3 B Binary Number System A Power Semiconductor Devices —————————— 11 UNIT 4 B Power Electronic Converters A Types of DC Motors —————————————15 UNIT 5 B Closed-loop Control of DC Drivers A AC Machines ———————————————19 UNIT 6 B Induction Motor Drive A Electric Power System ————————————22 UNIT 7 B PART 2 UNIT 1 B Power System Automation Control Theory A The World of Control ————————————27 —————29 The Transfer Function and the Laplace Transformation UNIT 2 B A Stability and the Time Response ————————— 30 Steady State————————————————— 31 A The Root Locus ————————————— 32 ————— 33 UNIT 3 B The Frequency Response Methods: Nyquist Diagrams UNIT 4 A The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B State Equations 40 38 UNIT 6 A Controllability, Observability, and Stability B Optimum Control Systems UNIT 7 A Conventional and Intelligent Control B Artificial Neural Network Computer Control Technology A Computer Structure and Function 42 B Fundamentals of Computer and Networks 43 44 PART 3 UNIT 1 UNIT 2 A Interfaces to External Signals and Devices B The Applications of Computers 46 UNIT 3 A PLC Overview B PACs for Industrial Control, the Future of Control UNIT 4 A Fundamentals of Single-chip Microcomputer 49 B Understanding DSP and Its Uses 1 UNIT 5 A A First Look at Embedded Systems B Embedded Systems Design Process Control A A Process Control System B 50 PART 4 UNIT 1 Fundamentals of Process Control 52 53 UNIT 2 A Sensors and Transmitters B Final Control Elements and Controllers UNIT 3 A P Controllers and PI Controllers B PID Controllers and Other Controllers UNIT 4 A Indicating Instruments B Control Panels Control Based on Network and Information A Automation Networking Application Areas B Evolution of Control System Architecture PART 5 UNIT 1 UNIT 2 A Fundamental Issues in Networked Control Systems B Stability of NCSs with Network-induced Delay UNIT 3 A Fundamentals of the Database System B Virtual Manufacturing—A Growing Trend in Automation UNIT 4 A Concepts of Computer Integrated Manufacturing B Enterprise Resources Planning and Beyond Synthetic Applications of Automatic Technology A Recent Advances and Future Trends in Electrical Machine Drivers B System Evolution in Intelligent Buildings PART 6 UNIT 1 UNIT 2 A Industrial Robot B A General Introduction to Pattern Recognition UNIT 3 A Renewable Energy B Electric Vehicles UNIT 1 A

电路 2 电路或电网络由以某种方式连接的电阻器，电感器和电容器等元件组成。如果网络不包含能源，如电池或发电机，那么就被称作无源网络。换句话说，如果存在一个或多个能源，那么组合的结果为有源网络。在研究电网络的特性时，我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成，所以必须首先定义这些元件的电特性。就电阻来说，电压-电流的关系由欧姆定律给出，欧姆定律指出：电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为： u=iR (1-1A-1)式中 u=电压，伏特；i =电流，安培；R =电阻，欧姆。纯电感电压由法拉第定律定义，法拉第定律指出：电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到：U=Ldi/dt 式中 di/dt =电流变化率，安培/秒； L =感应系数，享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分，因此得到的等式为 u=，式中电容量 C 是与电压和电荷相关的比例常数。由定义可知，电流等于电荷随时间的变化率，可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量，或 dq = i dt，那么等式(1-1A-3)可写为式中 C =电容量，法拉。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。