Abstract The impact tendency of coal is a necessary condition for the occurrence of pressure bumping and a measure of the degree of damage. Through the combination of self-made lateral restraint device and high-speed camera. the variation law and failure mode of burst tendency index of coal samples under real-time drilling and pressure relief of lateral restraint under different loads... https://www.ngetikin.com/mega-save-NHL-Calgary-Flames-Home-Jersey-iPhone-XR-Skin-p120897-hot-value/