特别地，当这种根的重数为偶数时，问题具有二重解。

In particular, as the multiple number of the root is even, the problem has two solutions.

youdao

特别地，当这种根的重数为偶数时，问题具有二重解。

In particular, as the multiple number of the root is even, the problem has two solutions.

youdao