theobroma cacao,cacao powder,cocoa powder price Nanjing Jinshan Chemical Technology Co., Ltd , https://www.jinschem.com 1. Mine engineering geology and hydrogeological observation work Hydrogeological work is the basis for prevention and control of underground water damage, and groundwater sources and their hydraulic linkages should be identified.
Second, advanced exploration and release of water In the production process of the mine, it is necessary to adhere to the principle of “doubt must be explored, first explore and then excavateâ€. After the water source is proved, measures are put in place to release water.