Exact solution of a statistical model for laser beam scattering from diffusing surface has been obtained, the comparison with the approximation of center of gravity has been made.
本文对激光束在漫射表面上散射的一类统计模型给出了严格解，并与“质心近似”所得结果作了比较。
As the method does not make depletion approximation nor ignores the influence of inversion layer charge on electric potential, it is thus exact.
这种方法既不采用耗尽近似，也不忽略反型电荷对电势的影响，因而它是精确的。
There you go. Exact result, and decimal approximation.
出来了，精确的答案，还有近似值。
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