GB/T 38550—2020 城市综合管廊运营服务规范 Specifications for operation service of urban utility tunnel 2020-03-06 发布 2020-10-01 实施
目 次
前言.....................................I
1范围....................................1
2规范性引用文件................................1
3术语和定义..................................1
4总则.....................................1
5基本流程...................................2
6服务要求...................................2
7质量评价...................................8