Crystal Mine control 水晶争夺战
Yao Gang immortal wheel mine, known for its large crystal.
瑶岗仙的车轮矿，以其晶体超大著称。
With over ten years of exploration and summarization in salt well exploitation, Shalongda salt Mine has gradually accumulated rules of eliminating and preventing pipe plugging by salt crystal.
沙隆达盐矿通过十多年盐井开采探索与总结，逐步形成了对盐井盐结晶解堵和防堵规律的认识。
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