ICS13.080CCSB1164宁夏回族自治区地方标准DB64/T1966—2023生态清洁小流域建设技术规范Technicalspecificationforconstructionoftheeco-environmentfriendlysmallwatersheds2023-12-28发布2024-03-28实施宁夏回族自治区市场监督管理厅发布DB64/TXXXX—2023I目次前言................................................................................III1范围...........................