电阻率

The CSAMT section is classified into four fragments in length of the total surveying line, which is 13 kilometers long. Results of comprehensive exploration technology of geophysics answer for the geology information of rock outcrops to fault zone and crash belt, which are verified by drilling data.

依据区域地质条件、岩石电性特征和岩层的沉积环境，按电阻率的高低范围及变化特征将13km长的CSAMT电阻率断面划分为4个不同部分进行解译，其中，断层破碎带的解释结果与野外岩石露头所反映的地质信息吻合较好。

TDE-85/DDS system is the suitable matrix for vapor as sisted resin transfer molding and the properties of GFRP equilibrium tube have e xceeded the technical-demands.

TDE-85/DDS体系完全符合VARTM工艺要求，其玻纤增强制品性能良好，马丁耐热为220℃，体积电阻率为2.4×108MΩm，表面电阻率为1.9×107MΩ。

Structural analysis is of great importance to further study the transport and magnetic properties of these manganese oxides.

通过四探针技术测量了系列样品在不同磁场下的电阻率，实验表明在低磁场下的电阻率变化不明显。

Reservoir bed is distinguished by providing the information about resistivity of formations using Electromagnetic Propagated Resistivity Logging method with several mega-hertz operation frequency. The information of dielectric constant of invaded zone is provided using Ultrahigh-frequency Electromagnetic Wave Logging method with above 200 mega-hertz operation frequency, which has no enough radial investigation depth but has a good vertical resolution.

几兆赫兹电磁波传播电阻率测井通过提取地层电阻率的信息来判别油层，以SPPRRYSUN公司源频率为2MHz的EWR-3D测井仪为代表。200 MHz以上的超高频电磁波传播测井具有很高的垂向分辨率，但探测深度太浅，基本上只能反映侵入带介电常数的信息，SCHLUMBERGER公司已推出源频率为1 。1GHz的EPT测井仪。

The surface resistivity and volume resistivity of zinc oxide whiskers were decreased by means of new aluminium-doping method.

采用新的铝掺杂力法，降低了氧化锌晶须的本体电阻率；研究了铝掺杂对氧化锌晶须电阻率的影响。

Polyethylene has excellent volume resistivity and surface characteristics similar to polystyrene.

聚乙烯具有与聚苯乙烯类似的、极好的体电阻率和表面电阻率。

Humidity greatly affects the results of surface resistivity measurements and, to a lesser degree, volume resistivity measurements, as well.

湿度对表面电阻率测量有重大的影响，对体电阻率的测量也有影响，只是其程度要小一些。

However, because of ultra-high bulk resistivity and surface resistivity of PE and PP materials, the articles made of PP or PE have notorious static problem.

由于PE和PP具有极高的体积电阻率和表面电阻率而导致静电荷的积累，因此在使用中经常发生静电危害。

With this method the copper plating graphite powder was made up in 50% copper content .The silver- copper plating graphite composite was prepared while the silver- copper-graphite composite and the silver-graphite composite were also made up together .The mechanical and electric characteristics of the three kinds of composites were tested and it was found that the copper plating graphite powder can only optimize the properties of the silver matrix composite under the high content of the graphite ,the conductivity and the mechanical property was improved and the material could take higher current in the same carbon content .At 20% carbon content, the resistivity of Ag-graphite composite was 1.67 times as high as that of silver- copper plating graphite composite, the resistivity of Ag-Cu-graphite composite was 3.23 times as high as that of silver- copper plating graphite composite. The bending strength of silver-copper plating graphite composite was 2.17 times as high as that of silver- copper-graphite composite, and the bending strength was 2.11 times as high as that of silver- copper-graphite composite. The wearability of silver- copper plating graphite composite was also enhanced greatly at high carbon content.

利用该方法制备了50%铜含量的镀铜石墨粉，然后进一步制备了一系列相同碳含量的银-石墨复合材料、银-铜-石墨复合材料、银-镀铜石墨复合材料，对三种材料的机械、电气性能进行了综合对比，发现在低碳含量时镀铜石墨粉不能改善复合材料的上述主要性能，而在中高碳含量时则能明显优化复合材料的整体性能，提高了复合材料的电导率，使复合材料在中高碳含量时既具有较高的耐磨性同时也能负载较大的电流，复合材料的机械性能也因镀铜石墨粉的加入而大幅提高，20%碳含量时，银-石墨复合材料的电阻率是银-镀铜石墨复合材料的1.67倍，银-铜-石墨复合材料的电阻率为银-镀铜石墨复合材料的3.23倍，银-镀铜石墨复合材料抗弯强度是银-铜-石墨复合材料的2.17倍，是银-石墨复合材料的2.11倍，同时，在实验给定的条件下，中高碳含量时银-镀铜石墨复合材料的机械磨损耐磨性和通电磨损耐磨性都得以显著提高，银-镀铜石墨复合材料在实验时的接触电压降也更为稳定。

Electric methods include resistivity profiling, resistivity sounding,"mise-a-la-masse" method, induced polarization method and self-potential method.

在每一大类中，又有一系列的方法，例如直流电法中就包括电阻率剖面法，电阻率测深，充电法，激发极化法和自然电位法等

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。