矿井生产能力 Mine capacity
煤矿矿井生产流程 production process of coal pits
增加矿井生产力技术 STI UP MINE PRODUCTIVITY
矿井生产规模 Scale of underground mine
矿井生产运输系统 mine production and haulage system
矿井安全生产 Mine Safety Production ; Mine safety ; Safety production of mine
生产矿井测量 [矿业] operating mine survey ; [矿业] production mine survey
此方法对实现矿井生产优质高效具有现实意义。
This method has realistic meaning in realizing high quality and efficiency of mining production.
实际应用表明：该开关有助于提高矿井生产安全性，可靠性高，使用灵活。
The practical application proved that this kind of assembled switch was helpful to enhance the security of production in coal mine and had high reliability and flexibility.
当前由于矿井所处的恶劣环境，矿井生产安全一直是人们十分关注的问题。
For the scurviness of mining system, the security environment of mining system is focus of people.
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