Resources and environment are essential to survive of human being. However, coal fire results more lose of natural resources and environment degradation.
资源与环境是人类赖以生存的基本条件，煤田火区灾害破坏了资源和恶化了环境。
2
The experiments have shown that the technology of oxidation degradation with nitric acid and sulfoxidation with sodium sulphite to produce water-reducer of cement with decomposed coal is available.
大量实验证明以风化煤为原料采用硝酸氧化降解后再磺化的方法生产混凝土减水剂的工艺是合理的。
3
The influence of coal granularity, quantity of white rot fungus liquid, and time of degradation on biodegradation percentage was studied by orthogonal test.