Resultados de búsqueda - "Pennsylvania"
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- Rock mechanics 8
- Ethnology 6
- Coal mines and mining 5
- Acoustic emission 4
- Acoustic emission testing 4
- Data processing 4
- Dictionaries 4
- Fracture mechanics 4
- Fusarium 4
- History 4
- Social life and customs 4
- Underground areas 4
- Abandoned coal mines 3
- Bibliography 3
- Economic conditions 3
- Environmental aspects 3
- Materials 3
- Mechanical properties 3
- Metallurgy 3
- Periodicals 3
- Salt 3
- Statistics 3
- Study and teaching 3
- United States 3
- Accounting 2
- Analysis 2
- Architecture 2
- Automation 2
- Birds 2
- Business 2
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