information about Underground mining (soft rock) field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Chemistry 28.9M papers | Engineering 25M papers | Geography 13.2M papers | Organic chemistry 12.9M papers |
History 8M papers | Archaeology 6.9M papers | Waste management 1.6M papers | Coal 287k papers |
Coal mining 93.7k papers | |||
| Current | |||
Underground mining (soft rock) 4,349 papers | |||
| Child | |||
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History