approximate alculation

• 近似计算

approximate alculation的用法和样例：

例句

1. The mathematical derivation process is simplified by partial approximate substitutions.
   用近似计算简化数学推导过程得到的表达式相对简单。
2. At last, the approximate calculation methods of pore water pressure and flowing pressure are presented.
   给出土坡稳定性分析中对孔隙水压力和动水压力的近似计算方法。