电阻率

The experiments o f dynamic rock resistivity change are done with uniaxially compression, low confi ning pressure and shear.

采用单轴压缩、低围压三轴压缩和剪切3种加载方式，对标本进行动态电阻率变化实验。

In unmineralized rocks, the applied current is carried only by the ionic solutions on pore spaces and the resistivity is independent of the frequency of the current.

在未矿化岩石中，只有岩石孔隙内的液体携带电流而电阻率却不会取决于电流的频率。

The paper has studyed the characteristics of seismic wave field in the media of EDA, and has made out three aspects of numerical simulation on wave field features by using definite difference: The simulation of P-wave ground seismic logs in the media of EDA; the diagnostic complication of seismic wave field in cranny belts due to the scattering of cranny wrappage; the decreasing of amplitude and the reversing of polarity of the wave reflected on not only the top but also the bottom of fracture zone.

2通过罗67井岩芯的系统研究表明，泥岩的横波和纵波速度随温度增大而降低，一定温度条件下随为压力而增大；泥岩裂缝的测井曲线一般表现为高电阻率、负自然电位异常、低声波时差，利用该规律可以半量定地识别划分泥岩裂缝储层特征，为解决不同度数据的相互匹配这一重点和难点问题提供了思路和方法。

With the rapid progress of the oil industry, many new and challenging problems began to face the well logging researchers in recent years, such as the development of new types of low frequency electromagnetic tools, the response of traditional induction logging sonde in highly deviated or horizontal wells, the processing technique of crosshole electromagnetic measurements, and the resistivity anisotropy, etc.

随着石油工业的不断发展，新的具有挑战性的问题不断出现在测井研究者面前，如新式低频电磁波测井仪的性能评价，大斜度井，水平井中感应测井的响应特征，井间电磁资料处理方法，电阻率各向异性问题等等。

Nano-TiO2 reaches also to the vadose zone when content is lower. Cement paste admixing with semiconductor nano-TiO2 has mechano-electric effect, specific resistance changing is 7%～10%, however, that with non-semiconductor nano-TiO2 has not mechano-electric effect.

纳米氧化钛在较小掺量即可进入渗流区；金红石相纳米氧化钛水泥石不具备力电耦合效应；而复合具有半导体特性的锐钛相纳米氧化钛的水泥石具有力电耦合效应，一次加载至破坏，其电阻率变化率在7%～10%。

The grain size of the films increased with the increase of substrate temperature, deposition time and atomizing rate of precursor.

基片温度对薄膜的组成影响较大，高沉积温度会导致LaNiO〓薄膜的分解，使薄膜的电阻率异常增大。

In this paper, an adaptive control system in which working voltage compensates the variation of electrolyte resistivity is discussed.

本文介绍了一种利用电解液电阻率信号来补偿加工电压的控制系统。

The density, electrical contact resistance and hardness of these two alloys were tested. The results show that Ag and rare earth oxide appear in Ag-Y and Ag-Ce alloy after internal oxidation. The distribution of oxide particles is inhomogeneous and seriously conglomerated in Ag-Y2O3 and Ag-CeO2 sintered bulk, but they are dispersed and uniform in Ag matrix after severe plastic deformation. The relative densities of wire materials are larger than 99% and the electrical contact resistances are low (＜2.2 μΩcm).

结果表明：Ag-Y和Ag-Ce合金粉末经内氧化处理后生成Ag和稀土氧化物2种物相；Ag-Y2O3和Ag-CeO2材料烧结坯中氧化物颗粒分布不均匀且团聚严重，但材料经过大变形加工后，氧化物颗粒细小，均匀地弥散分布在银基体上；最终产品丝材的相对密度均达到99%以上，电阻率较低(＜2.2 μΩcm)。

5 Deionized water with a resistivity of at least 18.0 megohm-centimeter.

4.5 电阻率至少为18.0兆欧-厘米的去离子水。

In this paper, first by Wenner measurement, the data of transparent soil resistivity, which changes with the distance between poles, was obtained, then according to delaminating technology, the delamination of the selected soil was gained and the earth structural model was made.

本文首先采用温纳四极法测量得到了视在土壤电阻率随测量极间距变化的数据，根据土壤结构分层技术通过分析得到了变电站站址土壤的实际分层情况，确定了符合实际的土壤结构模型。

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。