它不受井壁和用围岩层的影响，可准确地划分出咸淡水分界面。
It is not affected by the well-wall and surrounding strata and may differentiate accurately between seawater and fresh water.
由地震反射表示的一个界面，例如，具有不同的地震速度、密度、孔隙度、流体含量的两个岩层之间的界面。
An interface that might be represented by a seismic reflection, such as the contact between two bodies of rock having different seismic velocity, density, porosity, fluid content or all of those.
研究结果表明，煤柱上支承压力分布是开采影响岩层相互作用的结果，是开采引起集中应力在煤层与直接顶界面上的直接反映。
The results show that the abutment pressure distribution on coal pillar is the direct reflection of abutment stress induced by mining on the interfaces of coal seam and immediate roof.
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