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