Vast quantities of iron ore are then transported by autonomous trains to ocean ports.

然后，大量的铁矿石由自动列车运往海港。

As part of the scheme, a vast pipeline is due to be built to an Indian Ocean port in Tanzania.

作为该计划的一部分，将建造一条通往坦桑尼亚印度洋港口的大型管道。