地层

The results show that when the depth gradually reduces, pH values gradually increase, but conductivities and (superscript – subscript 3) content gradually reduce. There are also obvious differences between the groundwater in loess, alluvial deposit and acidity rock in the south of Chang'an, which relates to the depth, the characters of loess, the lixiviation and the evaporation. The element content of groundwater is high in the loess tableland, so it's fitter for drinking than the groundwater in the Cuihua mountains, which is of acidity and low element content.

结果表明，长安南部黄土塬随着层位的降低，pH值有逐渐增大趋势，电导率和HCO(上标–下标 3)含量有逐渐减少的趋势；黄土地下水、冲积层地下水和酸性岩石地下水的化学成分存在明显差异，这与其理深、地层性质、溶滤与蒸发作用不同有关；长安南部少陵源黄土地下水元素含量较高，比呈酸性、元素含量低的翠华山泉水更适于饮用。

On the basis of not changing the instrumen t resolution, wavelet analysis is used t o improve the vertical resolution of log ging curve to make the processed logging value approach the true resistivity val ue for the purpose of more accurate rese rvior parameters computation and thin be d correlation.

介绍了在不改变仪器探测深度的基础上，应用小波分析提高测井曲线纵向分辨率，使处理后的测井值更接近地层的真值，使精细求取储层参数和小层对比成为可能。

According to the basic principle of spontaneous potential log, this paper putsforword a method of quickly discerning and calculating electrofiltration potential withoutknowing of formation pressure, fluid viscosity, and the coefficient of electrofiltration potential .

方法根据自然电位测井基本原理，提出一种在不知道地层压力、流体粘度、过滤电位系数的条件下，快速识别和求取过滤电位的方法。

According to the data of the core and dense well log, in this paper a high-resolution sequence stratigraphic correlation is made to the Saertu reservoirs of Member 2 and 3 of Cretaceous Yaojia Formation in the Yingtai oilfield of Songliao basin.

应用岩心、油田开发区密井网资料，对松辽盆地英台油田白垩系姚家组第二和第三段进行高分辨率层序地层对比，并对高频基准面旋回内单砂体的发育特征和空间展布规律进行研究。

The heat transfer is happened in the stratum around the leakage passage, so the distribution of the temperature satisfies logarithmic equation.

渗漏通道周围地层中发生热传导，因而温度分布满足对数函数。

The transverse and longitudinal wave velocities of rock are important parameters in evaluation of stratum and seismic exploration and petroleum geology.

岩石纵、横波速度是地层评价和地震勘探的重要参数，衰减在地震勘探和石油地质研究中早已受到关注，但对于气源断裂的性能，一直没有很好的判断方法。

Finally, we conclude that the factors controlling the geomorphic characteristic of low relief in our study area is rock types, sedimentation, weathering and high-altitude peneplanation.

此外，研究区内的条带分析和地层年代划分表明控制研究区低坡度、低起伏地形特征的因素为：岩石的岩性、沉积作用、侵蚀作用及高山夷平面。

Paleontology, evolutionary developmental biology, comparative genomics and genomic phylostratigraphy contribute most of the evidence for the patterns and processes that can be classified as macroevolution.

古生物学、进化发育生物学、比较基因组学和基因组系统发育地层学为宏进化的模式和过程提供了大部分的证据。

We will make certain assumptions about the properties of the intruding magma and of the intruded strata.

我们对入侵的岩浆和被侵入地层的性质做某些假定。

Time sequence of the 25 m core was established based on ~14C dating, comparison of magnetic susceptibility curve and pollen record with SPECMAP curve.

根据~(14)C测年、磁化率曲线及孢粉图谱与SPECMAP曲线相对比，推算并建立了苏北盆地兴化钻孔剖面沉积物顶部25m的沉积地层年代序列：末次间冰期深度范围是25～17m，末次冰期范围是17～5.8m，全新世对应范围是5.8～0m；这一划分结果与已有的研究结果具有良好的对比性。

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。