That stands for the surface area element on this surface.
它表示曲面上的面积元素。
S Namely, you would consider a small element of a surface delta S.
即考虑曲面的面积元δ
The results show that different initial value give inconsistent surface abundance of heavy element.
结果表明，不同初值得到不同的表面重元素丰度分布。
The filter element has a surface against which the filtrate is trapped.
所述过滤器元件具有表面，所述滤液被捕获靠在所述表面上。
The relief surface of the element is of multiphase structure.
所得二元光学器件表面具有多位相的浮雕结构。
The sensing element then directly contacts the surface;
传感元件将会直接接触表面；
The sensing element then directly contacts the surface;
传感元件将会直接接触表面；
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