multistage formula

• 多级公式

multistage formula的用法和样例：

例句

1. An extension is made to the original calculating formula for the multiple-stage series idealmixing reactor and a deduced design equation with its analytical method is obtained.
   本文对原有的多级串联理想混合反应器的计算公式，进行了引伸，提出了一种递推设计方程式及其解析方法。
2. The general situation of domestic oil line pumps is presented,the hydraulic design formulas and performance curves of the multistage impeller pumps are given.
   介绍了国内输油管线泵的概况，并提供了多级中开式输油泵的水力设计公式和性能曲线。