但近年来，运输成本的降低和数字化分割了全球供应链，使产业的各个生产工序分布在多个国家，而非产业整体迁移。
But more recently, rather than industries moving en bloc, cheaper transport and digitalisation have sliced up supply chains and distributed the various stages of production around several countries.
大约在1815年，那时许多美国人已经从东边迁移到西边，这个国家从海港到内陆的交通运输线开始成为一个严重的问题。
About 1815, when many Americans from the east had already moved toward the west, transportation routes from the seaports to the central regions of the country began to be a serious problem.
美铁从现有的车站中迁移出，将会腾出更多的空间，简化交通流线，并扩大了新泽西运输与长岛铁路的交通走廊。
Moving Amtrak out of the existing station will allow more space, simplified circulation, and expanded corridors for New Jersey Transit and the Long Island Railroad.
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