中华人民共和国水利行业标准(SL 537-2011替代SL 20-92 SL 24-91 SD 174-85):水工建筑物与堰槽测流规范 [Code for Measuremet of Discharge by Hydraulics Structues,Weirs and Flumes] 电子书下载 PDF下载
中华人民共和国水利行业标准(SL 537-2011替代SL 20-92 SL 24-91 SD 174-85):水工建筑物与堰槽测流规范 [Code for Measuremet of Discharge by Hydraulics Structues,Weirs and Flumes] 高清PDF下载
中华人民共和国水利行业标准(SL 537-2011替代SL 20-92 SL 24-91 SD 174-85):水工建筑物与堰槽测流规范 [Code for Measuremet of Discharge by Hydraulics Structues,Weirs and Flumes] txt下载
中华人民共和国水利行业标准(SL 537-2011替代SL 20-92 SL 24-91 SD 174-85):水工建筑物与堰槽测流规范 [Code for Measuremet of Discharge by Hydraulics Structues,Weirs and Flumes] 电子书下载
中华人民共和国水利行业标准(SL 537-2011替代SL 20-92 SL 24-91 SD 174-85):水工建筑物与堰槽测流规范 [Code for Measuremet of Discharge by Hydraulics Structues,Weirs and Flumes] 在线阅读
中华人民共和国水利行业标准(SL 537-2011替代SL 20-92 SL 24-91 SD 174-85):水工建筑物与堰槽测流规范 [Code for Measuremet of Discharge by Hydraulics Structues,Weirs and Flumes] download