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2 results returnedA solid-state amplifier for the bridge circuit of a mercury detector
High-resolution seismic reflection techniques for mapping coal seams from the surface
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Subject
- Prospecting--Geophysical methods (2) *
- Coal mines and mining--Safety measures (1)
- Geochemical prospecting (1)
- Mercury--Measurement--Equipment and supplies (1)
- Mercury--Toxicology (1)
- Seismic prospecting (1)
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