They are widely used in large industrial plants, underground car parks, logistics centers, electronic products, machinery, chemicals, textiles, refrigeration, food, storage, and other fields.

广泛使用在大型工业厂房，地下停车场、物流中心、电子、机械、化工、纺织、冷冻、食品、仓储等领域。

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When inspecting the underground pipelines constructions, the section chief of logistics in a college asks the constructor: "What's the duration of the pipelines?"

某高校后勤处长，巡视地下管线建设，他问施工方：管线的寿命是多少年？

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