与轴向力在同一平面上的初始挠度对单层褶皱的影响 - 中南大学学报（自然科学版、英文版） 关键字: 褶皱; 挠度; 岩层; 微分方程[gap=791]Key words: fold; deflection; rock stratum; differential equation
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key rock stratum 关键层
impermeable rock stratum 不透水岩层
rock-stratum pollution 岩石地层污染 ; 岩层污染
repository in granite rock stratum 花岗岩层处置库
rock-stratum 岩石地层
lime rock stratum 石灰岩地层
soft rock stratum 软岩隧洞
An aquifer is a water - bearing rock stratum such as sandstone and chalk.
地下蓄水层是一些有水的岩石层，如沙岩和白垩岩。
Through similar material simulation the horizontal and vertical stress of arch rock stratum in pressure equilibrium is observed.
通过相似材料模拟，对压力平衡拱处岩层的水平应力和竖直应力的观测。
The rock stratum drilled by a rotary drill is random distributed and complicated, so it is difficult to define the drilling process.
牙轮钻机钻凿的岩层是随机分布、错综复杂的，因而钻进过程难以定义。
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