除了原油管线（东西方沙特管道），沙特阿拉伯还在寻找其他的运输路线。

Aside from the Petroline (East-West Saudi Pipeline), Saudi Arabia has also been looking at alternative transit routes.

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该公司在铺设新管道的同时，也在管线上安装无线感应器，使公司能够随时了解管线的运行状况。

And when the firm puts in new pipes, it also installs additional wireless sensors, giving it a better view of its network.

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供水主管道特别是地下管线很难监测。

Water mains are hard to inspect, particularly if they are underground.

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