Innovation in mining technology isn't optional—it's the lifeline that will determine the future of extractive industries.
从字符串中提取意义很困难,但是它们是我们唯一可以依靠的交流硬币。
某个命题可以从某一组公理通过某一规则系统推导出来,这一事实本身并不使其为真。
Quality is never an accident; it's always the result of intelligent effort.