regression study造句

based on successive regression study of observation data, the authors ascertained the factors having influence on the fluctuation in the bai spring discharge, established the regression equation and the prediction model, and calculated the exploitable karst water resources under natural conditions
摘要本文通过对辉县自泉泉水流量动态的分析，确定了泉水流量动态的影响因素，建立了泉水流量的衰减方程和泉水流量的预测模型，预测了天然状态泉水流量，评价了泉域岩溶水的开采资源。
It's difficult to find regression study in a sentence. 用regression study造句挺难的