Zobrazeno 1 - 1
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pro vyhledávání: '"Dunxi ZHANG"'
Publikováno v:
Meitan kexue jishu, Vol 50, Iss 12, Pp 92-101 (2022)
As one of the key parameters of bolt support, pre-tightening force plays a decisive role in active support. Domestic and foreign research shows that increasing the pre-tightening force of bolt can reduce the occurrence of roof fall accidents, so as t
Externí odkaz:
https://doaj.org/article/280c9e6be15249159f1100a50e02c14e