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This standard applies to the design of power distribution devices with a nominal voltage of 3500kV for newly built water conservan
SL 35-1992 Hydraulic Metal Structure Welder Examination Rules SL 35-92 SL35-1992 Standard download decompression password: www.bzx
This guideline is applicable to Class 1, 2, and 3 dams of large, medium, and particularly important small reservoirs. Dams include
This standard is applicable to the engineering geological survey of Class 1, Class 2, Class 3 dikes, culverts, and banks of rivers
This standard is formulated to unify the drilling and pumping test methods for water conservancy and hydropower projects, determin
This standard is formulated based on the technical progress and development of hydropower units and the experience of bidding, des
This standard is formulated to further unify the geological survey work of small and medium-sized water conservancy and hydropower
SL 312-2005 Technical Management Regulations for Soil and Water Conservation Project Operation SL312-2005 Standard download decomp