qū shè pào / de / zuì dà / tè diǎn / shì / dàn dào / wān qū / shì hé / shān dì / zuò zhàn

曲射炮的最大特点是弹道弯曲，适合山地作战。

The main feature of a curved-fire gun is its curved trajectory, making it suitable for mountain warfare.