narrow-gauge造句

1、This is a narrow-gauge railway.
这是一条窄轨铁路。

2、In the south they are putting in a wide-gauge track to replace the old narrow-gauge lines.
在南面，他们正在铺设宽轨的铁道儿代替原先的窄轨的铁道。

3、Content: the shijiazhuang-taiyuan line is the first state-owned narrow-gauge railway in China.
正太铁路是中国第一条国有窄轨铁路。