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Explosive Safety Standards (MichaelBurov); General Explosive Safety Rules (MichaelBurov); General Rules on Explosive Safety (MichaelBurov) |
общие правила взрывобезопасности: 4 Phrasen in 3 Thematiken |
Allgemeine Lexik | 2 |
Kaspisch | 1 |
Sicherheitssysteme | 1 |