Definition

Examples

• 城市的地下管线非常复杂。
  Chéngshì de dìxià guǎn xiàn fēicháng fùzá.
  The underground utility lines in the city are very complex.
• 施工时要小心，不要破坏管线。
  Shīgōng shí yào xiǎoxīn, bú yào pòhuài guǎn xiàn.
  Be careful during construction not to damage the pipes and cables.
• 政府正在更新老旧的管线系统。
  Zhèngfǔ zhèngzài gēngxīn lǎojiù de guǎn xiàn xìtǒng.
  The government is upgrading the old utility line system.