44广东省地方标准DB44/T2490－2024公路工程信息模型分类和编码标准Standardforclassificationandcodingofbuildinginformationmodelinginhighwayengineering2024-04-11发布2024-07-11实施广东省市场监督管理局发布ICS93.080.01CCSP66DB44/T2490—2024I目次前言.................................................................................II引言..................................
