OK, so the first thing to do is find the area element.
第一件事就是要求出面积元。
That stands for the surface area element on this surface.
它表示曲面上的面积元素。
Well, it is just going to be the area element in a horizontal plane.
其实它是水平面的面积元素。
The least square method equalization filter is a kind of 2D filter; its filtering window is surface area element.
最小二乘法均衡滤波器是二维滤波器，其滤波窗口是一个面积单元。
The method comprises the following steps: after parallel rays project to a target surface area element, acquiring a path parameter of each ray from incidence to reflection;
所述方法包括：当平行射线投向目标面元后，获取每条射线从入 射到反射的路径参数；
The method comprises the following steps: after parallel rays project to a target surface area element, acquiring a path parameter of each ray from incidence to reflection;
所述方法包括：当平行射线投向目标面元后，获取每条射线从入 射到反射的路径参数；
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