结合某矿分段空场嗣后一次充填采矿法的多年实践，分析了充填接顶和采场脱水问题的产生原因，详细叙述了控制空场嗣后一次充填质量的改进技术。
Combining with several years experience on open stope backfill in one time, the causes of the problems were analyzed and some technique improvements were put forward.
该机生产出的包装袋为枕型形状，可适用于各行各业颗粒状的自动包装需要，可一次完成袋充填、封合、计数。
This series machines are suitable for packing pillow-shaped granular products. Automatically accomplish packing, making, filling, cutting, sealing and counting.
目的评价急性牙髓炎一次性根管充填法治疗的疗效。
Objective Evaluation one-time root canal treatment acute pulpitis effect.
应用推荐