A simplified equation to compute PSD is deduced from the mathematical model.

关于计算psd的一个简化公式可由数学模型推导出。

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With the simplified equation, the expression of received beam has been achieved for Gaussian beam.

利用简化的传输方程，得到了高斯光束入射时的接收光束分布的表达式。

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The Galilean transformation was applied to the simplified equation to make a surface function related to only coordinates.

应用伽利略变换对简化后的方程进行变量变换，使得曲面函数仅与空间相关；

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And thanks to our equation simplified here, it's very easy for us to figure out what actually the allowed energy levels are.

由于有了简化的方程，我们很容易看出,这些允许的能级在那里。

麻省理工公开课 - 化学原理课程节选

The great science fiction writer Isaac Asimov, in a classic novel called the Foundation, posited an advanced mathematical-rhetorical technology that could convert any speech to symbols, which could in turn be simplified like any other complex equation.

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