In this paper, based on the model's mathematical structure, we propose an elementarysolution method.
本文提出了一种基于模型结构的初等数学解法。
2
This paper discussed an elementarysolution to the envelope of a kind of family of curves of which the equation was one of the cubic equations in regard to a parameter.
本文论述曲线族的方程为关于参数的三次方程时，其包络曲线方程的初等求法。
3
Described in this paper is the calculation of hydrodynamic coefficients of submarine horizontal stabilizing fin -rudder assembly by a numerical method of finite elementarysolution.