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ITU-T H.782-2017 Digital signage: Metadata2023-12-05

ETSI TS 102 822-3-1/1-2019 Broadcast And On-Line Services: Search, Select, And Rightful Use Of Content ("Tv...2023-07-18

DIN SPEC 91380-2018 Serious Games Metadata Format2023-07-14

ETSI TS 102 822-3-1/2-2019 Broadcast And On-Line Services: Search, Select, And Rightful Use Of Content ("Tv...2023-07-11

GB/T 33674-2017气象数据集核心元数据Core metadata content of meteorological dataset2022-06-09

河南省风能数据库系统建设2020-11-03