The intricate distribution of fractures in rock mass leads to the anisotropy of permeability characteristics of the rock mass. which affects the overall stability of rock mass. Aiming at the water inrush from floor in the deep mining of the Dongjiahe coal mine. the distribution and development law of fractures in coal mine rock mass are determined by combining the acoustic emission in... https://allfixelectricales.shop/product-category/mains-terminal-strip/