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liu xing, Nanjing, JS, Chine
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Language:Chinese.Paperback. Pub Date: 2021-04-01 Publisher: Metallurgical Industry Press This book is a summary of the author's many years of scientific research. The book establishes an adaptive grading system for gob-side entry retention. Six geological factors. such as lithology. direct roof influence coefficient and roof integrity. were used to evaluate the adaptability of gob-side entry retention. and the influence weights of the 6 geological factors were obtained through AHP. The adapta. N° de réf. du vendeur AMZ093896_NX027813_093896
Titre : Application Theory Research of Gob-Side ...
Éditeur : Metallurgical Industry Press
Date d'édition : 2021
Reliure : paperback
Etat : New