9787502096793 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2023-09-01 Pages: 125 Language: Chinese Publisher: Emergency Management Press This book is a supporting book for the dissemination and study of the Implementation Rules for Safety Acceptance Evaluation of Coalbed Methane Surface Mining Construction Project (hereinafter referred to as the Rules). It introduces the development history of coalbed methane surface mining safety evaluation and the formulation background. main features. main contents. purpose and significance of.…