So the word rank means the number of dimensions in the output of a transformation.

所以rank这个词意味着变换输出中的维数。

So a more precise definition of rank would be that it's the number of dimensions in the column space.

所以秩的一个更精确的定义是它是列空间中的维数。

But the matrix is still full rank, since the number of dimensions in this column space is the same as the number of dimensions of the input space.

但是这个矩阵仍然是满秩的 因为这个列空间的维数和输入空间的维数是一样的。

Bonds are a better deal right now relative to equities, and they're a better deal relative to equities on the number of dimensions that we've seen you know in the past 15 years or so.

目前，债券相对于股票来说是更划算的交易，而且在过去 15 年左右的时间里， 从您所了解的维度来看， 债券相对于股票来说也是更划算的交易。