本研究还选取了部分形态学上的近似种和疑难种进行ITS序列分析。
Finally, in this study, some similar species in morphology were chosen for ITS sequences analysis.
对于一般的设计，一维分析法只是一种近似的方法。
A dimensional analysis is studied as an approximate method for general design.
并给出了这些算法对相位近似的解析分析。
The phase approximation of different algorithms is given in analytic.
研究和分析有阻尼单摆的运动方程，应用近似法方程时发现存在冲击波解并精确求解。
Studying the equation of motion of damped simple pendulum, the shock wave solution is found.
研究和分析有阻尼单摆的运动方程，应用近似法方程时发现存在冲击波解并精确求解。
Studying the equation of motion of damped simple pendulum, the shock wave solution is found.
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