After basin structural,karstic development and groundwater regime characteristic analyses figured out the main strontium contained mineral water aquifer is Middle Ordovician Fengfeng Formation members II and III karstic fractured aquifer,the element strontium is come from carbonate and igneous rocks,.

Analysis on permeability features of carbonatite in Fengfeng Group of North China type coalfield;

Accurate forecasting of school bus peak period traffic volume in weekend,not only can help the school bus director to arrange the interval of buses to improve the efficiency and save the cost,but also can reduce the teachers and students long waiting time and improve school bus’s service level.