The new formula also lines up the average life span of a Lab (12 years) with the average 70-year human life span.

新公式还将实验室的平均寿命（12 年）与人类的平均寿命 70 年对齐。

And again, linearity is going to imply that any other vector on the diagonal line spanned by this guy is just going to get stretched out by a factor of two.

再一次地 线性意味着在这条由这个向量张成的对角线上的任何向量都会被拉伸成2倍。