per second calculation造句

• Combining with practical investigation and analysis , the author presented the fitting equation of the second non - uniform coefficient in which the method of least squares error approximation with the power index regression is used and proposed a modified formula for flow rate per second calculation to precisely determine the size of pipeline and to make the design advanced in technology and reasonable cost
  本課題分析了室外和室內的設計流量公式，通過調查、實測本地區的水量資料，運用相關數學方法分析，提出了適合小區給水管網采用的流量公式。
• It's difficult to find per second calculation in a sentence. 用per second calculation造句挺難的