spontaneous combustion造句31. Coal-waste rocks as an industrial solid waste, is a primary environment problem in diggings due to its spontaneous combustion.
32. Coal spontaneous combustion seriously threats the safety of coal industry.
33. They think I caught fire because a chemical reaction caused spontaneous combustion.
34. Finally, some phenomena of spontaneous combustion of coal are explained by using this mechanism.
35. But spontaneous combustion of carbon accumulation in compressors is a potential safety hazard.
36. Coal spontaneous combustion is one of the big disaster in the coal product.
37. Are you sure that's automobile spontaneous combustion and not the new Toyota charcoal BBQ?
38. The paper analyzes the causes of carbon accumulation and proposes some countermeasures to avoid spontaneous combustion.
39. To solve the problem of spontaneous combustion in coal seams, the cutting-off of air leakage and oxygen supply can get twice the results with half the effort.
40. Based on the study of main factors of coal spontaneous combustion, a mathematical model for the process of coal self-heating in mines was put forward.
41. When working face has mechanized support, air leakage quantity is small, velocity is low in goaf, and spontaneous combustion zone is more approach to working face.