支架穿孔与踩踏后的屋面防水修复，与光伏安装同窗作业一次成活最经济。
Roof waterproof repair after penetrations and foot traffic, most economical done in the same mobilization as PV installation.
AI 光伏设计平台免费开放：从术语到完整设计图纸与可研报告。