价值可以是近似值或由正式的评估机构提供的报告，因为机构将会给出尽可能准确的数值。
Values can be approximate or may be determined by wayof a formal valuation, as they should be as accurate as possible.
根据数值计算结果，提出一个计算束半径的近似公式。
According to the results of numerical calculation, the proximate formula of estimating radius of the beam was developed.
首先从耦合模方程出发，比较了数值分析结果与小信号近似分析的结果。
Firstly, the comparison of numerical analysis results and the small signal analysis results is given based on the coupled mode equation.
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