Abstract In response to the frequent occurrence of high-energy microseismic events in coal mines in China. a back propagation neural network (BPNN) prediction model based on surface subsidence data has been proposed to provide a basis for safely and efficiently predicting coal mine disasters. Theoretical research on the relationship between surface displacement. mining disturbance. https://www.spidertattooz.com/Essie-Gel-Cause-Reflect-0-5-oz-736G-p22291/
Essie cause and reflect
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