Zobrazeno 1 - 1
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pro vyhledávání: '"Yong-jian Lei"'
Publikováno v:
Mining Science and Technology (China). 19:70-73
The efficiency of excavation a mining tunnel is definitely linked with modes of cut-holes. According to experience and methods of engineering analogy, the double-wedge cut, the 9-hole cut and the single spiral cut were determined originally by consid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7fe442d966247e4ff9158ec4559c160
https://doi.org/10.1016/s1674-5264(09)60013-2
https://doi.org/10.1016/s1674-5264(09)60013-2
