The spontaneous combustion of the oil-soaked rags caused the barn to catch fire. 油布碎片的自燃使穀倉起火。
The self-igniting characteristic of ore and the fire extinguishing method that uses watery grout in Tongshan Copper Mine are presented. 介紹了銅山銅礦礦石自燃發火特徵及用稀水泥漿阻燃滅火的方法。