1. The explosive limit is one of main index to judge explosion fatalness of fuel gases. 爆炸极限是评定可燃气体火灾爆炸危险的主要指标之一。
2. The burnout of police mainly come from work environment, work burthen, work fatalness, and social support. 警察工作倦怠的来源主要是来自工作环境、工作负荷、工作危险性和社会支持。
3. Underground commercial construction shows the higher fire fatalness within all types of underground construction. 在各种地下建筑形式中，地下商业建筑具有更高的火灾危险性。
4. It shows that infuse gel can reduce coal well temperature, coal and oxygen reaction and explosive fatalness greatly. 结果表明：采用凝胶注入法可有效降低煤矿温度，减缓煤氧反应，降低爆炸危险。
5. Conclusion: for the cardiopathy patients that operated, the state of the illness changes rapidness, bigger fatalness. 结论：心脏病病人术后病情变化快，危险性大，需密切监护，及时处理。
