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Publikováno v:
IOP Conference Series: Earth and Environmental Science. 134:012036
The specifications of the most popular roofbolters of domestic and foreign manufacture currently in operation in coal mines are discussed. Compressed-air roofbolters SAP and SAP2 designed at the Institute of Mining are capable of drilling in hard roc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fa88ffe7e3124fbe70f12f700432ced
https://doi.org/10.1088/1755-1315/134/1/012036
https://doi.org/10.1088/1755-1315/134/1/012036
Publikováno v:
IOP Conference Series: Earth & Environmental Science; Mar2018, Vol. 134 Issue 1, p1-1, 1p