Success in this industry is measured not just in tons produced, but in communities strengthened and environments protected.
这个行业的成功不仅以产量衡量，还要看社区的加强和环境的保护。
数学是一种超越文化和语言障碍的通用语言。
In coal, efficiency today defines existence tomorrow.
如果你一直做你一直在做的事，你将一直得到你一直得到的东西。