电阻率

The electromagnetic responses of the finite size induction coils were evaluated, and the effects of the borehole mud ,casing pipe and radius of the induction coils were analyzed, the sensitivity of the electromagnetic response to the formation resistivity was checked against the crosshole measurements.

分析了金属套管井中有限尺寸线圈的电磁响应特征，讨论了井眼泥浆参数﹑套管参数和不同线圈尺寸对电磁测井响应的影响，考察了金属套管中电磁测井对地层电阻率变化的灵敏度。

An automatic system for the measurement of two-dimensional distribution of resistivity of semi-insulating gallium arsenide wafer with three electrode guard method is presented in this paper.

本文介绍了三电极保护法半绝缘砷化镓材料电阻率二维分布自动测量系统，在实际应用中，温度波动、异常数据对测量结果产生严重影响，为此我们提出了一些措施。

Blue,double side anti-static gelatine coating substrate,low surface resistivity;Used for producing medical X-ray film.

蓝色，双面涂布防静电明胶底层，表面电阻率低；用于生产医用X射线胶片等。

The results show that the higher graphitization degree of pitch derived carbon is, the higher real density is.

利用 X射线衍射方法检测了所得沥青炭试样的石墨化度；对比分析了几种试样的真密度、电阻率和磁阻。

Employing the GREEN theorem, the boundary integral equations for solving the ground surface potential are derived for the first time, both for one object underground and for complicated geological structure.

利用格林公式首次推导出了单一目标体和复杂地质结构两种情况下直流电阻率正演模拟中求解表面电位的边界积分方程。

If the range of sample resistivities to be measured is wide, the Model 7065 Hall Effect Card can be used in place of the Model 7168 and 7156 scanner cards.

如果被测样品的电阻率范围很宽，可以用7065型霍尔效应卡来代替7168和7156扫描器卡。

The principle and application of the high-density resistivity was introduced.

介绍了高密度电阻率法的原理及应用情况。

The high-density resistivity method is one of the effective methods in engineering surveying.

高密度电阻率法是工程勘测的一种有效方法。

The results showed that the light-colored compound conductive powder exhibit hoariness of the colour , resistant rate to 35.cm , small crystallite sizes about 0.04 mm ,the electric substance of wrap sizes about nanometer and posses the nice disperse and stability .

2得到的浅色复合导电粉末外观颜色为浅灰白，平均粒径小于0.04mm，电阻率低，可达35Ω。cm左右；包覆的导电物质分布均匀、颗粒细小、为纳米级晶粒；分散性和稳定性也比较好。

This paper calculates the 3D magnetotelluric responses in homogeneous half space using integral equation method and apply the damped least square method to inverse the resistivity of 3D model.

采用积分方程法计算均匀半空间中三维异常体的大地电磁响应，然后利用阻尼最小二乘法反演得到地下三维异常体电阻率分布。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。