英语翻译

问题描述：

英语翻译
Simple steady state and transient mass balance calculations for estimating pollutant concentrations in a single well-mixed zone can be implemented
大哥~我正在用有道翻译呢，就是因为有道对这句句子翻译不出我要的内容，我自己能力有没有所以才来这里求助的呀~
Simple steady state and transient mass balance calculations for estimating pollutant concentrations in a single well-mixed zone can be implemented by the users.前文少了最后三个单词。