Zobrazeno 1 - 1
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pro vyhledávání: '"Wei Long Man"'
Publikováno v:
Applied Mechanics and Materials. :3606-3610
The shaft drilling diameter is up to φ7m, Larger borehole and deepened section make slow drilling problem more and more prominent, which has seriously affected the drilling cost and drilling cycle, thus affecting the exploration and development spee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11bf3724222df4e59967d5ec331607df
https://doi.org/10.4028/www.scientific.net/amm.353-356.3606
https://doi.org/10.4028/www.scientific.net/amm.353-356.3606
