✦ LIBER ✦
Efficiency of the use of an auger with a variable cutting pitch in narrow-web cutter-loaders for fracturing hard coals
✍ Scribed by A. N. Korshunov; M. T. Tagirov
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 248 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1573-8736
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