It has been a big and difficult problem that the uncontrolled rocket has large dispersion and low firing accuracy.

无控火箭的老大难问题是散布大，射击精度差。

youdao

It has been a big and difficult problem that the uncontrolled rocket has large dispersion and low firing accuracy.

无控火箭的老大难问题是散布大，射击精度差。

youdao