建工修复：已在20余个项目上开展了航测服务 实现了空地一体化环境信息模型

Group 1 - The company, Jian Gong Repair (300958), has utilized drone-based environmental surveying technology in over 20 projects, providing aerial surveying services [1] - The company has achieved an integrated air-ground environmental information model through its technology [1]