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DB21/T 2713-2016 Technical regulation for sowing and seedlings cultivation of Thuja occidentalis valid
DB21/T 2714.1-2016 Specification for intelligent public traffic system Part 1：Operation of electronic bus stop board valid
DB21/T 2714.2-2016 Specification for intelligent public traffic system Part 2：Data management valid
DB21/T 2715.1-2016 valid
DB21/T 2715.2-2016 valid
DB21/T 2716.1-2016 valid
DB21/T 2716.2-2016 Strongylocentrotus intermedius and Strongylocentrotus nudus Part 2 Strongylocentrotus nudus valid
DB21/T 2717-2016 Technical regulations of melon pollination by bumblebee in plastic tunnels valid
DB21/T 2718-2016 Technical regulations of pollination by bumblebee in solar greenhouses valid
DB21/T 2719-2016 Technical Regulation for the cultivition of Lentinula edodes under the forest floor valid
DB21/T 2720-2016 Technical Regulation for the cultivition of Pleurotus citrinipileatus Sing undet the forest floor valid
DB21/T 2721-2016 Technical Regulation for the cultivition of Hericium erinaceus undet the forest floo valid
DB21/T 2722-2017 The technical specification for polyculture of fish and litopenaeus vannamei in fresh water ponds valid
DB21/T 2723-2017 Rules for intensive cultivation of apple with dwarfing rootstock valid
DB21/T 2724-2017 Liaoning provincial evaluation guidelines for river and lake (reservoir) health valid
DB21/T 2725-2017 Technical Regulations for Cultivation of Seedling of Tilia amurensis Rupr. valid
DB21/T 2726-2017 Technical Regulation for Grafting of Hybrid Hazelnut (Corylus heterophylla Fisch. Corylus avallana L.) valid
DB21/T 2727-2017 Top-working technical regulation for walnut trees valid
DB21/T 2728-2017 Drawing specification for operational design for degraded shelter forest restoration valid
DB21/T 2729-2017 Technical regulation of commercial timber plantation construction valid
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