2Strengthen Occupational Protection Supervision of Staff in Coal Mines with the Aid of Strong Law Arms3-5
11Self-tightening Technology for Compound Gas Canister Made from Carbon Fibre and Its Stress Analysis27-30
13Earth Leakage Protection System of High-voltage Electrified Net Based on Current Compensation Method34-36
20Preliminary Discussion on How to Carry out Safety Production Law for Enterprises of Coal Mine and Guaranteeing Safety51-52