Zobrazeno 1 - 1
of 1
pro vyhledávání: '"underground drilling construction"'
Publikováno v:
Meikuang Anquan, Vol 51, Iss 6, Pp 134-137 (2020)
The common types and treatment methods of drilling accidents in directional drilling construction are described, and the principle, auxiliary salvage drilling tools, process methods and key points of reverse wire salvage technology are emphatically a
Externí odkaz:
https://doaj.org/article/602846917f2747d19e861eaa80b846a3
