sandstone-
Both clay and sandstone are unstable rock formations .
黏土和砂岩都是不牢固的岩石构造。
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Behind the habitations , the sandstone cliffs rose abruptly to the north and west .
在居住区后面，北边和西边陡然高耸着砂岩悬崖。
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Sand was deposited which hardened into sandstone .
沙经沉积固结形成沙岩。
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Sandstone cuts easily .
沙岩容易切割。
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This channel is filled with cross-bedded sandstone .
该河边充填着具交错层理的砂岩。
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The cardium sandstone is lithic , being composed of grains of chert , quartz , quartzite , silicified argillite , and other rock fragments .
卡迪砂岩是岩屑砂岩，由燧石，石英、石英岩、硅化泥板岩和其它岩石碎屑颗粒所组成。
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This sandstone unit is commonly thick-bedded and massive , with silty and carbonaceous laminations .
该砂层单元通常为厚层或块状，具粉砂质和碳质纹层
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Analysis of formation mechanism and control factors of Triassic sandstone fracture
东濮凹陷三叠系砂岩裂缝形成机理及控制因素
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Stochastic simulation methods analysis of channel sandstone reservoir . On Sand
河道砂储集层随机模拟方法分析
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Characteristic Analysis and Control Methods of the Sandstone Water in Vertical Shafts
立井井筒砂岩水特性分析及治理方法
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A chemical damage model of sandstone in acid environment
酸性环境中钙质胶结砂岩的化学损伤模型
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Application of formation stress in fracturing development for tight sandstone reservoir
地应力及其在致密砂岩气藏压裂开发中的应用
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The method and technical study for sandstone type of uranium by seismic survey
砂岩型铀矿地震勘探方法技术研究
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Fracture development and strain field around the stress induced crack area in sandstone
细砂岩裂纹周围变形破坏过程及应变场分布
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Elementary analysis on the main factors affecting the permeability of sandstones
浅析影响砂岩渗透性的主要因素
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Determination method of strength parameters for sandstone and marble with one specimen
单一试样确定大理岩和砂岩强度参数的方法
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Fracture description technology and application in low permeability and thin sandstone reservoirs
低渗透薄砂岩储层裂缝描述技术及应用
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Relationship between the shear strength and water content of swelling sandstones
膨胀砂岩的抗剪强度与含水量的关系
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The hydrogeological characteristics and control of fracture water in sandstone in mine
矿区砂岩裂隙水水文地质特征及其防治措施
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Ultrasonic test of loose sandstone and the result analysis
疏松砂岩超声测试及其结果分析
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It is found that seism process can improve sandstone reservoir quality .
研究发现地震对地层的改造作用能改善砂岩储层的储集物性。
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Research on the Shear Strength Parameter of Sandstone Fracture
砂岩结构面抗剪强度参数研究
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An quantitative prediction of thin layer sandstone by cluster and incidence degree analysis
利用聚&关分析法进行薄层砂体定量预测
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Experimental study on the relation between compression strength of sandstone and interval transit time
砂岩抗压强度与声波时差关系的实验研究
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High pressure state parameters of fluid - saturated sandstones
流体饱和砂岩在高压下的物性参数
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Comprehensive prevention and control technology of water from sandstone crack of coal mining face roof
工作面顶板砂岩裂隙水综合防治技术
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The logging technology of exploring the coal bed methane in sandstone
煤成气砂岩储层的测井探测技术
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Types and characteristics of deep sandstone reservoirs in Shengli petroleum province
胜利油区深部砂岩储集层类型及特征
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Study on the influence of water-rock interaction to the strength of sandstone
水岩相互作用对砂岩单轴强度的影响研究
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Establishing Mathematical Model of Capacitive Sandstone Level Sensor Characteristic
电容式砂石料位传感器特征的数学模型建立