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  stratum
    THEORETICAL STUDY OF KEY STRATUM IN GROUND CONTROL
    岩控制中的关键理论研究
短句来源
    Production Practice on Stoping First Stratum of Orebody by High Merged Sublevel
    高并段回采首矿体的生产实践
短句来源
    THE KEY STRATUM METHOD OF RISK EVALUATION FOR WATER INRUSH IN COAL MINE
    评价矿井突水危险性的关键方法
短句来源
    Study on key stratum in shallow seam
    浅埋煤关键研究
短句来源
    Study on application of combinatorial key stratum theoryand parameters determining
    组合关键理论的应用研究及其参数确定
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  bed
    Statistical Study of Characteristics and Mechanism of Differentiation of Intercrystalline Brine in Salt Bed S_3 of the Qarhan Salt Lake
    察尔汗盐湖S_3盐晶间卤水分异特征及成因的统计研究
短句来源
    FEATURES OF SOURCE BED IN JINLONGSHAN GOLD DEPOSIT
    金龙山金矿床矿源特征
短句来源
    Study on Organic Geochemistry of the Siliceous Rocks of Taiyangding Group---The Source Bed of Laerma Gold Deposit
    拉尔玛金矿矿源──太阳顶群硅质岩的有机地球化学研究
短句来源
    Study on the Double-density Fluidized Bed
    双密度空气重介流化床的研究
短句来源
    A prediction method for permeable sand bed in land facies formations
    陆相地渗透性砂预测方法
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  strata
    Plane Contact Type of Structure and Stability Mechanisim in Strata Over Working Site
    采场上覆岩结构的面接触类型及稳定性力学机理
短句来源
    A Structural Model of Overlying Strata in Longwall workings and its Application
    采场上覆岩岩体结构模型及其应用
短句来源
    A Modeling Study of the Equilibrium Conditions for Overlying Strata in Longwall Mining Area
    采场上覆岩平衡条件的模型研究
短句来源
    GROUND BEHAVIOUR AND OVERLYING STRATA STRUCTURE OF COAL FACE WITH CAVING IN STEEP SEAM
    急斜放顶煤工作面的矿压显现和上覆岩结构
短句来源
    CAVING CHARACTERISTICS AND GROUND BEHAVIOR OF THE STRATA OVERLYING THE SEAM C_9 AT ENHONG COLLIERY
    恩洪矿C_9煤上覆岩冒落特征及其矿压显现
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  “层”译为未确定词的双语例句
    Research on the Movement and Control of "θ" Letter Type Overlying Milti-Strata Spatial Structures of Face Surrounded by Mined Areas
    四面采空采场“θ”型覆岩多空间结构运动及控制研究
短句来源
    The Probability Thicklayer Screening Method and Its Industry Application
    概率厚分级筛及其工业应用
短句来源
    DEVELOPING CONDITIONS OF LAYER-SLIDING STRUCTURE AND ITS RESEACH SIGNIFICANCE IN COAL MINE
    杉木树煤矿滑构造形成条件及研究意义
短句来源
    Theory and Application of Residual Gas Pressure in Overlying Adjacent Seams
    上邻近残存瓦斯压力的理论与应用
短句来源
    Methods of Gas Drainage from Adjacent Seam in Yengquan Coal Mining Area and Evaluation of Its Technology, Economy and Suitability
    阳泉矿区邻近瓦斯抽放方法及技术经济和适用性评价
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  stratum
We give a coordinate system on each stratum, and show that all strata are coisotropic subvarieties.
      
Analytical solutions are presented for the consolidation of a semi-infinite stratum and a finite soil layer with an impeding layer located on the surface subjected to a vertical point loading.
      
Analysis of the operation of a system of gas wells draining a closed gas stratum
      
Gas movement near exposed surface of a coal stratum with variable gas permeability
      
Solution of an axisymmetric problem of unsteady filtration in an infinite stratum
      
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  bed
A test-bed is built up and regenerative braking tests are carried out.
      
The pressure drop of a cross-flow moving-bed was investigated in a two-dimensional rectangular apparatus.
      
A comparison was described by using three methods of enzymatic hydrolysis and adsorption of steam exploded straw (SEWS): shaking ball in the regime, shaking with stirrer bed, and static state.
      
Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method
      
A discrete element method (DEM)-computational fluid dynamics (CFD) two-way coupling method was employed to simulate the hydrodynamics in a two-dimensional spouted bed with draft plates.
      
更多          
  strata
We give a coordinate system on each stratum, and show that all strata are coisotropic subvarieties.
      
These Buchia assemblages first demonstrate that not only the Upper Jurassic strata but also the highest Buchia assemblage-Buchia subokensis, which appeared in Lower Cretaceous strata all over the world are present in Lanongla area.
      
The correlation between provenances and tectonostratigraphic strata of the western Yangtze craton shows that the source materials should be primarily from Neoproterozoic.
      
Secondary sources were Archean and Paleoproterozoic strata.
      
The NE-SW compressive stress from the Qinling orogenic belt and detachment layers in the covering strata are the two most important determinants of deformation style.
      
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研究地下开采影响下岩石及地表的移动规律对于采矿工业有很大意义.从岩石移动的随机性出发,文中确定开采影响的分布是一种正态分布(8).考虑到下沉盆地的形成与土压密过程相似,以及岩石在变形过程中体积并不改变,导出了介质水平及倾斜成时,单元盆地的下沉与水平移动的公式(19)(35).同时并通过理论途径确定了下沉与水平移动之间的联系(30)(39).然后,根据迭加法则给出了平面问题中岩石移动过程的时间空间积分表达式(42).指出了理论结果与实际的一致性.

~~

本文是阐明跳汰水流运动特性对分选过程作用的研究.在实验研究的基础上,提出了当分选50~0和50~3毫米级煤时,应采用不同的跳汰水流运动特性——似正弦跳汰周期和似贝尔德跳汰周期.通过对床松散度的试验,作者归纳出四种床松散状态,并提出当床的上下先开始松散,然后中松散的松散状态最为理想.经实验和分析研究后得出,当跳汰过程床具有中等相对松散度时,涡流撞击压力是水流作用在群粒上的水动力学的基本形式.根据对床厚度和筛下补给水实验资料的分析,提出了适当的床厚度和降低筛下补给水的途径——改变风阀周期.为了精确地测定跳汰脉冲水流运动特性和评价跳汰产品质量,作者根据所发现的特殊磁场,制出了浮标式电磁感应变换器和提出对跳汰分产物分选精确度的计算方法.

According to the characteristics of paleobotany, the flora features of Taxigou Series undoubtedly belong to the late age of the Dictyophyllum-Clathropteris groups while the flora of the Yaojie Group are members of the Coniopteris-Phoenicopsis groups; so that the age of Taxigou Series is earlier than that of the Yaojie Group.According to the correlation of the stratigraphy, the writer deems that the Taxigou Series and the Yanganshi Formation of this locality and the Nanying-er Group of Wu-wei district in this...

According to the characteristics of paleobotany, the flora features of Taxigou Series undoubtedly belong to the late age of the Dictyophyllum-Clathropteris groups while the flora of the Yaojie Group are members of the Coniopteris-Phoenicopsis groups; so that the age of Taxigou Series is earlier than that of the Yaojie Group.According to the correlation of the stratigraphy, the writer deems that the Taxigou Series and the Yanganshi Formation of this locality and the Nanying-er Group of Wu-wei district in this province are contemporary deposites. Therefore, the upper part of the Na-nying-er Group has the possibility of belonging to the early Jurassic perieod and the lower part of the Taxigou Series might be of late Triassic.The age of Yaojie Group belongs to the middle Jurassic and its contacted relation with Nanying-er Group is discomformable. The Xiang-ta'ng Group of the upper Jurassic is also discomformable overlying the Yaojie Group.Beeause of the flora feutures of the Honggou Group well resemble that of the Yaojie Groups and the contacted relation between them is comformable, so that the Honggou Group is really the upper part of the Yaojie Group and is unneccessary to be divided from the lat-ter as a single stratigraphic unit.

根据古植物特征,“大西沟系”的古植物群属Djctyophyllum-Clathropteris植物群的晚期群落,而窑街群的古植物群则属于Coniopteris-Phoenicopsis植物群,因而“大西沟系”的时代早于窑街群.根据地对比“大西沟系”与“羊肝石”及武威南营几群为同期沉积,因而南营几群的上部有属于早侏罗世的可能,而“大西沟系”的下部有属于晚三迭世沉积的可能. 窑街群属中侏罗统,与南营几群呈假整合接触.晚侏罗统享堂群则假整合于窑街群之上. 红沟群由于古植物面貌与窑街群一致,又二者呈整合接触,因而红沟群不宜单独划出,而归于窑街群顶部.

 
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