《元史·列传·卷九十七》
占城兵驻守木城，四面约二十余里，城上有楼栅，有回回三梢炮百余座。
占城兵治木城，四面约二十余里，起楼棚，立回回三梢炮百余座。
Zhancheng soldiers were stationed in the wooden city, which was about 20 miles on each side. There were towers and fences on the city, and more than 100 Huihui three-shaft cannons.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 占城兵治木城，四面约二十余里，起楼棚，立回回三梢炮百余座。 [/INST] Zhancheng soldiers were stationed in the wooden city, which was about 20 miles on each side. There were towers and fences on the city, and more than 100 Huihui three-shaft cannons.</s>
Explain the meaning of this Classical Chinese passage in English: 占城兵治木城，四面约二十余里，起楼棚，立回回三梢炮百余座。
user
Zhancheng soldiers were stationed in the wooden city, which was about 20 miles on each side. There were towers and fences on the city, and more than 100 Huihui three-shaft cannons.
assistant