Through processing along ditch coal mine 23702 working surface fire accident case analysis …Through processing the ditch edgecoal 23702 working …
通过处理沿沟煤矿23702工作面火灾事故案例分析．这句话如何翻…
2
In my town, on the edge of the gas patch, the old middle school still hosts safety training for coal miners.
在我居住的地方，天然气厂旁边的那所老中学还在给矿工进行安全培训。
3
Today, there are scientists and researchers shuttling between the companies and the research institute, working to develop cutting-edge solutions for cleaner-burning coal and carbon sequestration.