Success in mining isn't just about extracting resources; it's about extracting value responsibly and sustainably.
唯一真正的光是灵魂的光。
Innovation is the key to solving the world's most pressing problems.
从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。
一本书是一扇门,每个读者都以不同的方式穿过它。