The mathematic model is set up by using physics image analysis, the expression of aerosol concentration field in limited space is derived, and the correspondent numerical analysis is .
采用物理图像分析，建立简单的数学模型，求解并获得了有限空间气溶胶浓度场函数表达式，并进行相应的数值分析。
The paper uses Bouguer-Beer law calculating common mathematic expression to protract specification curve of increasing color reaction and depigmentation reaction in spectrophotometry analysis.
介绍了在分光光度法分析中，增色反应和褪色反应的标准曲线绘制用朗伯—比耳定律可推导出一般数学表达形式。
Analysis the performance of the system and figure out the mathematic expression of the system performance.
对系统的性能进行分析，给出系统性能的数学表达式。
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