The physical bonds included the network of military garrisons, which were stationed in every province, and the network of stone-built roads that linked the provinces with Rome.

这些有形的纽带包括驻扎在每个省的军事要塞网络和将各省与罗马连接的石造道路网络。

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Take an engineer who runs a quarrying firm in Tamil Nadu, providing stone for sands, grits and gravels used in everything from houses to roads.

有位工程师在泰米尔那德邦经营着一家采石场，开采石头用作道路、房屋建造中使用的沙子石子的原料。

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Tiger Stone makes construction of brick roads easier and more efficient.

“老虎石”让修路变得更为便捷。

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The discovery of the metalled and cambered roadway was made at a Tarmac quarry, from where stone is transported to be used in roads and motorways.

BBC: Iron Age road found in Shropshire by archaeologists