information about Underground mining (soft rock) field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Chemistry 28.4M papers | Engineering 23.9M papers | Organic chemistry 12.8M papers | Geography 11.1M papers |
History 7M papers | Archaeology 6.3M papers | Waste management 1.5M papers | Coal 270k papers |
Coal mining 87.6k papers | |||
| Current | |||
Underground mining (soft rock) 3,756 papers | |||
| Child | |||
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History