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| of special importance (Leya-Richter); of crucial importance (Leya-Richter); of particular importance (Leya-Richter); special (Ася Кудрявцева) | |||
| top-secret (РФ / документ, изделие, работа); highly sensitive; mega-important; critical | |||
| D-notice (статус документа ad_notam) | |||
| high-value (Alex_Odeychuk); exceptionally controlled information (гриф секретности Alex_Odeychuk) | |||
| high-level (Islet) | |||
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| particular importance; significant importance (во фразах BabaikaFromPechka) | |||
| primary concern | |||
| особой важности: 62 phrases in 17 subjects |