building gas pipe

例句：

1. 1.The construction site needed a new building gas pipe to replace the old one.
   施工现场需要一根新的建筑用燃气管来替换旧的。
2. 2.The engineer inspected the building gas pipe for any leaks before they started work.
   工程师在开始工作前检查了建筑用燃气管是否有泄漏。
3. 3. The building gas pipe was installed by a professional contractor who ensured it met all safety standards.
   专业的承包商安装了这条建筑用燃气管，并确保它符合所有安全标准。