heavily loaded railway

• 重载铁路

heavily loaded railway的用法和样例：

例句

1. Automatic operation is now well established in the metro sector, but the Pilbara project will be the first deployment on a heavy haul railway of this scale.
   自动操作现在是公认的地铁部门，但皮尔巴拉项目将首次部署在重载铁路这一规模。