用线性规划模型提出淮北市地下水资源的最佳管理方案。
The optimal results of the groundwater management in the city were determined by linear programming. Finally, the proposals, consisting o…
简述了淮北市采煤塌陷区复垦的几种主要模式及存在的主要问题,提出几种综合开发的方法。
The paper preliminary discusses few reclamation mode and existing problem about mining subsidence region in Huaibei City. and puts forward some methods of comprehensive development.
通过对淮北市地质、水文地质条件的综合分析,建立了淮北市双含水层系统水文地质概念模型。
The physical concept model of a two-aquifer system was established by the comprehensive analysis of the geological and hydrogeological conditions in Huaibei city.
方法采用分层随机抽样方法,抽取安徽省淮北市4所中学的310名教师,采用教师职业倦怠量表(MBI-ES)进行调查。
Methods A total of 310 teachers from 4 middle schools in Huaibei City were selected with stratified random sampling to undergo a survey with teacher job burnout questionnaire(MBI-ES).
方法采用分层随机抽样方法,抽取安徽省淮北市4所中学的310名教师,采用教师职业倦怠量表(MBI-ES)进行调查。
Methods A total of 310 teachers from 4 middle schools in Huaibei City were selected with stratified random sampling to undergo a survey with teacher job burnout questionnaire(MBI-ES).
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