Development of alluvial gold deposits by underground method
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In the practice of underground development of placers there are quite a variety of systems of opening and development, determined both by the conditions of the placers, and by considerations of technical and economic order.
LF/107906690/R
Data sheet
- Name of the Author
- Е. В.
Митрофанов - Language
- Russian
- Release date
- 1938
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In the practice of underground development of placers there are quite a variety of systems of opening and development, determined both by the conditions of the ...