adit level meaning in Hindi

Examples

1. A drift went north with a raise to the adit level.
2. The quarry was worked on seven levels, but the three below the adit level are now flooded.
3. The mine and winding plant is situated on an earth bench cut into the hillside at adit level directly above the battery.
4. The quarry was eventually worked on seven levels, four below the adit, one at adit level, and two above it.