针对上述主要问题,提出采用上向分条分层废石充填采矿法。
According to the problems above, the waste rock fill mining method with the upward slitting stratification is put forward.
最后针对上述的模型和方法,提出了传统库存控制方法存在的主要问题。
Finally on the models and methods by the traditional methods of inventory control are some of the major issues.
基于上述内涵,本文在第一章提出了研究目的、主要问题及研究方法。
Based on the idea above, author presents the main problem, the research methods and the purpose of the study in chapter one.
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