According to structural property of linear optical amplifier (LOA), a model was built using rate equations.
针对线性光放大器(loa)的结构特点，建立了基于速率方程的模型。
Process solving helicopter structural bearing capacity in iteration method and solution of non-linear equations are present in the paper.
介绍用迭代方法求解直升机结构承载能力的过程，求解非线性方程。
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