1·This paper divided mine ventilation optimization into two types.
本文将矿井通风优化分为两类。
2·Some of the basic features of mine ventilation network are analyzed.
本文对矿井通风的某些基本性质进行了分析和论证。
3·It may supply the mathematical basis for analysis of mine ventilation.
为矿井风流非稳定的分析提供了数学基础。
4·Mine ventilation female students in good jobs and security professionals will it?
女生学矿井通风与安全专业将来好就业吗？
5·This method can be used for both local network and whole mine ventilation system.
该方法既可用于局部风网，也可用于全矿系统。
6·This paper introduces a new software package of mine ventilation simulation system.
介绍一个矿井通风系统模拟软件包。
7·The basic problems of mine ventilation optimization and its steps and procedures were given.
给出了矿井通风优化的基本问题、步骤和程序。
8·According to a survey, most of the coalmine accidents are caused by imperfect mine ventilation.
根据调查显示，大部分的煤矿事故都与矿井通风系统不完善有直接的关系。
9·It has theoretical and practical importance in steering the mine ventilation design and mining.
对于指导矿井的通风设计和采掘部署，有重要的理论和实际意义。
10·In the paper, the utilizations on natural energy resources in underground metal mine ventilation.
通过实例，对金属矿山通风中自然能源利用问题进行了分析和论述。