https://gcn.nasa.gov/circulars/27947
GCN - Circulars - 27947 - GRB 200615A: Fermi GBM Final Real-time Localization
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https://codeofchina.com/standard/GB27947-2011.html
GB 27947-2011 English, GB 27947-2011 Hygienic requirements for phenol disinfectant (English) - Code...
GB 27947-2011 English - GB 27947-2011 Hygienic requirements for phenol disinfectant (English): GB 27947-2011, GB/T 27947-2011, GBT 27947-2011, GB27947-2011, GB...
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