lanjian 中文意思是什麼
lanjian
解釋
藍澗-
Technique of blasting vibration reduction for drift - repass in lanjian iron ore
蘭尖鐵礦保護平硐溜井的爆破減震技術措施 -
In the light of the change of the rock mass structure and blasting conditions and the application of new explosives in lanjian iron mines pit, tests were carried out on charges loading structure, blasting hole spacing pattern parameters and blasting methods. the optimized rational blasting parameters greatly improved the blasting efficiency, which led to good economical benefits
針對蘭尖鐵礦采場巖體結構、爆破條件等的變化及新型炸藥的使用，開展了裝藥結構、爆破孔網參數及爆破方法試驗，優化確定了合理的爆破參數，使爆破效率大幅提高，取得了良好的經濟效益。 -
Design and development of management information system for spare parts in lanjian iron mine
蘭尖鐵礦備件管理信息系統的設計與開發
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