When meeting with U.S. President Joe Biden on the sidelines of the 31st APEC Economic Leaders' Meeting in the Peruvian ...

1 Gas Research Branch, China Coal Technology Engineering Group Chongqing Research Institute, Chongqing, China 2 Key-Laboratory of In-Situ Properties-Modified Mining of Ministry of Education, Taiyuan ...

5.1.3 Physical detection of the overlying strata structure at the 8,105 working face To precisely detect the caved zone in the goaf after the extraction of the fully mechanised mining face, we ...

Key Laboratory of Thermal Disaster and Prevention, Ministry of Education, Huludao 125000, China ...