✦ LIBER ✦
Vertical shaft sinking technology in China's coal mines (in Chinese) : Shen Jiliang World Coal Technol, N9, Sept 1980, P13–22
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 102 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0148-9062
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