地下界面 meaning in English

subsurface interface

The conversion of observed reflection time to a correct geometrical picture of the subsurface involves a number of steps .
将观察的反射波时间转换成正确的地下界面几何图形，需经过好些步骤。
When applying the conventional fourier pseudospectral method on cartesian grids , curved interfaces are represented in a " staircase fashion " causing spurious diffractions . it is demonstrated that these non - physical diffractions can be eliminated by using curved grids that generally follow all curved interfaces
在直角坐标系下用传统伪谱法模拟地下界面时，弯曲起伏的连续界面会因离散化而成为阶梯状界面，这种阶梯状界面在模拟波的传播时，将产生人为绕射，降低合成记录的精度。