Analyse @Amb_Ulyanov's tweets
@Amb_Ulyanov
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Session of WG B ( verification) of CTBTO Preparatory Commission started in Vienna. As of now 300 facilities of International Monitoring System have been certified(89 per cent of overall number). 28 of them are located on the territory of Russia( second largest national segment). https://t.co/sS8EwFwe5o