strata

The rebels came overwhelmingly from the poorest strata of rural society .

叛乱分子绝大多数来自农村的最贫困阶层。

Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago .

岩层中有证据表明，该地区在15,000年前曾经非常干旱。

This is a problem that cuts across all strata of society .

这是一个影响到一切社会阶层的问题。

Erosion of gently dipping strata commonly results in the formation of asymmetrical ridges known as cuestas .

轻微倾斜地层的侵蚀通常造成非对称的山脊，称为单面山。

A Summary of the Chinese Social Strata Studies in Recent Years

近年来关于中国社会阶层问题研究的综述

Comprehensive Analysis Method of Three Zone Classification on Mine Roof Strata

顶板岩层三带划分的综合分析法

The study of strata and surface movement by using the method of mechanics

用力学方法研究岩层及地表移动

People 's Strata Consciousness in Urban China during the Transformation Era

转型期中国大陆城市居民的阶层意识

Analysis on the Problems of the Classes and Strata in Our Present Country

我国当前的阶级阶层问题分析

Digital simulation research on strata control of solid waste paste filling

固体废物膏体充填岩层控制的数值模拟研究

Study on Artificial Neural Network Method for Calculation of Displacement Angle of Strata

岩层移动角选取的神经网络方法研究

The Optimal Analysis of Mine Development Layout in Soft Strata

软岩矿井开拓布置的优化分析

E City On Research of Chinese Urban Lower Strata

中国城市下层研究的经纬和课题

Foundation of a Mathematical Model for True Thickness of the Strata

岩层真厚度数学模型的建立

The new social strata have emerged in china since Reform and Opening .

改革开放以来，中国出现了新的社会阶层。

Advance in the Key Strata Theory of Mining Rock mass

采动岩体的关键层理论研究新进展

The fracturing rules of main roof strata as a plant structure

老顶岩层板结构断裂规律

Elementary Exploration on the Construction Technology of STRATA Stress Absorbing Layers

STRATA反射裂缝应力吸收层施工技术

Composite Medium Model of Strata Movement and Its Engineering Verification

岩层移动的复合介质模型及其工程验证

Analysis on key layer of overlying strata with elastic slab theory

用弹性板理论分析采场覆岩中的关键层

Comparative analysis of strata prediction models for ground movement induced by tunnel construction

隧道施工引起地层位移预测模型的对比分析

Chapter VI : The Change of City Population and Social Strata .

第六章是城市人口和社会阶层的变化。

Modeling method of 3D strata suitable for massive data

适于海量数据的三维地层建模方法

Application of the optimum division method of identical class to classification of strata

用同级别最优分割法划分地层

A method study on the interpretation of coal gasification strata by using well logging data

测井资料解释煤成气层方法研究

Forecast Fissures in Coal Measures Strata by the Use of Seismic Data

利用地震数据预测煤系地层裂隙

The study on the character of strata subsidence during repeat mining

重复采动条件下覆岩下沉特性的研究

Experimental Study on Seepage Characteristics of Some Yangtze River Dike foundation Strata

长江堤防某些土层组合的渗流特性试验

Analysis of breakage and collapse of thick key strata around coal face

采场覆岩厚关键层破断与冒落规律分析

Development Features of Triassic Strata and Analysis of Original Sedimentary Pattern in North China

华北地区三叠纪地层发育特征及原始沉积格局分析