地层

The role of vegetation in outlining formations is often of great help.

在圈定地层过程中，植被往往具有很大的作用。

Proper well planning requires the hydrostatic head of the drilling fluid to overbalance the formation pressureby a certain safety margin.

合适的钻井计划需要使水面保持在一个确定的安全落差来平衡掉地层压力。

By changing overburden dynamic parameter, it reviews influence of the stratum change on the dam body.

通过改变覆盖层动力特性参数，考察地层刚度的变化对坝体反应的影响。

These sand bodies overlie the dark mud stone in Qingshakou, hydrocarbon generated in the dark mud stone migrates directly to the overlay Y1 sand body and finally hydrocarbon reservoirs are formed.

这些砂体直接覆盖在青山口组大套的暗色泥岩之上，青山口组地层暗色泥岩生成的油气直接有效地运移到其上覆的姚一段砂体之中，最终富集成藏。

But except for the part complex area the overlying formation of the objective layer is relatively good.

但在局部复杂的区域外围，目标层的上覆地层地质条件相对就较好。

The process of the movement of overlying strata and surface is simulated factually.

根据关键层理论，分析了覆岩地层结构与离层的关系，探讨了覆岩离层发育过程的阶段性和周期性。

This overthrust formation contained all the rock in the mountains in the park today, plus a large amount of rock no longer found there because of erosion.

这包含所有覆地层的岩石山中今天在公园里，再加上大量的岩石不再发现因为侵蚀。

On the basis of adopting and analyzing comprehensively the available results, geology and seismic data as well as core data, this paper is focused on the analysis of strata and sedimentary facies character distribution of south margin of Junggar basin, and on the studies of structure frameworks and development of foreland overthrust belt.

本文在收集、整理前人的研究成果、地质及地震勘探及钻井资料的基础上，对准噶尔盆地南缘地层及沉积相带展布特征进行了研究分析，对准噶尔盆地南缘前陆冲断带构造格局与形成演化进行了分析研究。

After over five decades of study on southern China, geologists find that Sinian of Proterozoic and lower Palaeozoic are closely related in terms of formation and structure. Therefore, they are defined as Lower Assemblage in Southern China.

地质工作者经过50多年来对我国南方地区的研究发现，元古界震旦系和下古生界在地层组成和构造运动上都有着密切联系，于是将二者定义为南方下组合进行研究。

By comprehensively using the information of lithostratigraphy, paleobiology, isotope, paleomagnetism, fission track of apatite, well-logging, geophysics and petroleum geology, the characteristics of the sedimentary wave processes in the Tazhong uplift, North depression and the Tabei uplift were studied by the wave process analysis method under the direction of the wave theory of the earth's crust movement in this paper, and the main achievements are as follows

本文以地壳波状运动理论为指导，综合利用岩石地层、古生物、同位素、古地磁、磷灰石裂变径迹、测井、地球物理、石油地质等方面的资料，运用沉积波动过程的研究方法，研究了塔里木盆地环满加尔地区(塔中隆起带，北部坳陷和塔北隆起)的沉积波动特征。

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。