total track length

例句：

1. 1.The total track length of the railway is 20 kilometers.
   这条铁路的总轨道长度是20公里。
2. 2. The construction of the new bridge will increase the total track length by 5 kilometers.
   新桥梁的建设将增加总轨道长度5公里。
3. 3.The total track length of the railway has been increased to accommodate more passengers.
   铁路的总轨道长度已经增加以容纳更多的乘客。