In the alteration project of a gymnasium complex building, accessory building and four frame columns supporting the grid roof were removed to construct a stand.

  • 某风雨操场综合楼改造工程拆除了辅助用房及支撑网架屋面的四根框架柱改造成为球场看台。

  • 互联网摘选 2025-01-19 23:58:54

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