Dictionaries define blindness as "being without the sense of sign, " but there are many degrees of blindness.

字典定义失明为“没有视觉”，但是失明实际分为很多级别。我们把这个矩阵的秩定义为它所包含的线性无关行的数目。

youdao

Dictionaries define blindness as "being without the sense of sign, " but there are many degrees of blindness.

字典定义失明为“没有视觉”，但是失明实际分为很多级别。我们把这个矩阵的秩定义为它所包含的线性无关行的数目。

youdao