在美国，交通运输业生产率大幅提高的时期可能即将结束，但在大多数国家，这一阶段仍有很长的路要走。

In America, the period of huge productivity gains in transportation may be almost over, but in most countries the process still has far to go.

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差不多所有的设备都必须依赖进口，这既麻烦且成本高昂，因为道路运输系统还处在初级阶段。

Virtually all equipment must be imported, which is difficult and expensive, as road links are rudimentary.

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采取这些措施的目的是必须消除机械在整个预期寿命周期内，包括运输、装配和拆卸、报废和拆毁阶段内的任何风险。

Thee aim of measures taken must be to eliminate any risk throughout the foreseeable lifetime of the machinery including the phases of transport, assembly, dismantling, disabling and scrapping.

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