体电阻率:表示直接通过材料的泄漏电流。
Volume resistivity: leakage of current directly through the material.
体电阻率和表面电阻率的测量决定于几个因素。
Volume and surface resistivity measurements are dependent on several factors.
首先是磁曲率对等离子体电阻性不稳定性的影响。
The first is that the effects of the magnetic curvature on the resistive interchange mode in tokamak plasmas.
目的:通过在体电阻应变测量法探讨种植体弹性模量的变化对颌骨表面压应变值的影响。
Objective: To study the effects of elastic modulus change of dental implants on the compressive stress in the surface of the jaw of dogs.
玻璃和陶瓷也具有很高的体电阻率,但是在高湿度下表面电阻率性质较差,并且其压电性常常也较差。
Glass and ceramics also have high volume resistivity, but poor surface properties at high humidity and often-poor piezoelectric properties.
文中分析了用岩体电阻率观测技术预报顶板失稳的物理依据,提出了应用该方法的可行性及其主要研究方向。
Physical basis for predicting roof failed in stability by the technique mentioned above is analysed, and the feasibility and research course of this method are also proposed.
以数值结果揭示外延层的体电阻率及厚度、活性区载流子的扩散长度、模增益和丝区宽度等参量对上述各种分布的影响。
Numerical results indicate how the various parameters such as bulk resistivity and carrier diffusion length in the active region affect the profiles.
本节详细介绍如何使用这些测试夹具来进行表面电阻率和体电阻率的测量,以及测量电阻率时使用的变换极性和变换电压的技术。
This section details how to make surface and volume resistivity measurements with these test fixtures, as well as the Alternating Polarity and Alternating Voltage techniques for measuring resistivity.
设计者使用了各种方法以使晶体管和温度系数电阻达到热耦合,从粘合它们二者为一体,到给它们装上共同的散热器。
Designers use various methods of thermally coupling the transistor and the tempco, ranging from glueing the two together, to mounting them both on a common heat sink.
Hla说(金属线)是可能在半导体或绝缘体上制作的,从而进一步证明电子是沿着电线无电阻导电。
Hla said (metal wire) is probably produced in the semiconductor or insulator and thus further evidence of the electronic conductivity along the wires without resistance.
Hla说(金属线)是可能在半导体或绝缘体上制作的,从而进一步证明电子是沿着电线无电阻导电。
Hla said (metal wire) is probably produced in the semiconductor or insulator, and thus further evidence of the electronic conductivity along the wires without resistance.
Hla说(金属线)是可能在半导体或绝缘体上制作的,从而进一步证明电子是沿着电线无电阻导电。
Hla says it should be possible to grow the wires on semiconductors or insulators as well and prove that electrons superconduct along the wires.
支撑用的绝缘体应当用电阻非常高的材料,如聚四氟乙烯或陶瓷来制作。
The support insulators should be made of materials with very high resistance, such as Teflon. or ceramic.
皮肤上的油脂和盐份能够降低绝缘体的性能,空气中的污染物可能沉积在绝缘体的表面,从而降低其电阻。
Oils and salts from the skin can degrade insulator performance, and contaminants in the air can be deposited on the insulator surface, reducing its resistance.
有些绝缘体的性能会随施加的电压发生变化,因此评估绝缘电阻的预期工作电压是非常重要的。
The properties of some insulators change with applied voltage, so it is important to evaluate IR at or above the expected operating voltage.
研究方法和主要成果如下:使用电阻炉熔炼a356铝合金,并采用斜坡冷却法进行半固态熔体的制备。
Research method and main results is as following: Using electrical resistance furnace and cooling slope to melt A356 aluminum alloy and gain the semi-solid slurry.
应用该模型进行了火花半径、接地体冲击地电位分布、电流波形及冲击接地电阻的计算。
Computation of spark discharge radius, impulse grounding potential distribution, current waveform and impulse grounding resistance is conducted by using this model.
包裹体中水相盐度的测定能准确提供测井资料,计算原油储量所需的束缚水电阻率数据。
Measurement of the water salinity of fluid inclusion can offer accurate logging data and calculate irreducible water resistivity data for crude reservoirs.
高温超导(HTS)体由于具有较低的表面电阻,在天线应用中,它可以提高天线的效率。
The high temperature superconductors (HTS) bearing low surface resistance can be used to raise the efficiency of antenna.
绝缘体实际上也导电,但其电阻很高。
Insulators in reality conduct electricity but, nevertheless, their resistance is very high.
对均匀介质中矩形混凝土竖直单根钢筋接地体的基础接地电阻的计算方法进行了研究。
This paper studies a calculation method for earth resistance of a single vertical steel rodin rectangle concrete of uniform dielectric.
利用模拟实验测试了形状规则和不规则接地体的接地电阻。
The ground resistance of regularly-shaped and irregularly-shaped ground objects are tested with simulation experiments.
激电异常表现出高极化率低电阻率的电性特征,与矿区铜矿(体)石具有相同的电性特征。
The induced polarization anomaly is character of high in chargeability and low in electrical resistivity which is consistent with the electrical property of copper ore-body.
检查一下控电板和设备体上的那些电器设备,看看他们的绝缘电阻和绝缘强度是否合格。
Check whether the insulation resistance and the dielectric strength of the electric devices attached to the panel and equipment body are sufficient.
影响电力系统接地电阻的主要因素是接地体所在土壤的模型及参数。
The main factors which affect the earth resistance are the earth model and parameters where the grounding body is buried.
提高回转式合成碳膜电位器线性精度的一种方法就是利用先进的设备,采取修刻电阻体的方式来改善电位器的输出特性。
The major way to improve the linear precision of Rotary Synthetic Carbon Film Potentiometer is to trim resistance using the advanced equipments.
电阻器表面二次玻璃体保护膜覆盖完好且难以脱落,表面平整。
The surface of resistor is covered with Protective coating which hard to fade, and the surface of coating should avoid unevenness.
通过自洽的内扭曲模理论讨论了电阻对鱼骨模的影响,分析了主等离子体及高能成分的不同参数区。
A consistent theoretical description of the resistive internal mode is presented to discuss the effect of resistivity on fishbone mode for different parameter regime of bulk and hot components.
最后对不锈钢支撑体上的电阻分布和电池堆内的气压的分布进行了测量。
The resistance distribution of the stainless steel supports and the distribution of air pressure within the cell stack are measured at last.
最后对不锈钢支撑体上的电阻分布和电池堆内的气压的分布进行了测量。
The resistance distribution of the stainless steel supports and the distribution of air pressure within the cell stack are measured at last.
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