First we must take normal or general human being's natural characteristic, namely person is a free and conscious existence as premise condition.
首先要以普通人或一般人的本质特性，即人是一个自由的有意识的存在者为前提条件。
Finally, natural frequency is obtained by the existence condition of nontrivial solution of the discrete algebraic equations derived from the integral equations.
最后由积分方程的离散化方程组有非平凡解的条件，求得固有频率。
There are 3 sections: 1 Existence condition of natural man and management idea of empiric in agricultural times.
第一部分：农业时代自然人的生存状态和经验型的管理思想。
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