These two fracture systems are nearly orthogonal in the plane view.
两个断裂系统在平面上呈近于正交的关系。
The barycentric coordinates of the plane view projection of a coal face are solved with a formula of geometric gravity centre.
利用平面图形几何重心公式计算回采工作面水平投影图形的重心坐标,然后根据影响传播角和开采深度计算下沉盆地中心位置的坐标。
In plane view, the fractures and vuggs in the Lower Paleozoic carbonate reservoirs are in zonal distribution in the study area.
进而认识到,平面上桩海地区下古生界碳酸盐岩储层缝洞分布呈条带状。
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