lanjian meaning in Chinese

蓝涧

Technique of blasting vibration reduction for drift - repass in lanjian iron ore
兰尖铁矿保护平硐溜井的爆破减震技术措施
Design and development of management information system for spare parts in lanjian iron mine
兰尖铁矿备件管理信息系统的设计与开发
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
针对兰尖铁矿采场岩体结构、爆破条件等的变化及新型炸药的使用，开展了装药结构、爆破孔网参数及爆破方法试验，优化确定了合理的爆破参数，使爆破效率大幅提高，取得了良好的经济效益。