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प्रश्न
Explain any three features of the underground mining method used in different countries of the world.
थोडक्यात उत्तर
उत्तर
The main features of underground mining are:
- In this method, vertical shafts have to be sunk, from where underground galleries radiate to reach the minerals.
- Minerals are extracted and transported to the surface through the passages.
- It requires specially designed lifts, drills, haulage vehicles, ventilation system for safe and efficient movement of people and materials.
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