字最大的射程是500多米，可见当时的军工业是比较发达的。

Word of the largest more than 500 meters, range is an army of industry is visible when a relatively developed.

youdao

字最大的射程是500多米，可见当时的军工业是比较发达的。

Word of the largest more than 500 meters, range is an army of industry is visible when a relatively developed.

youdao