#774558

#774558: What explosive is equipped with facilities for removal of combustible and explosive gases

What explosive is equipped with facilities for removal of combustible and explosive gases
Варианты ответа:
  • A system of forced ventilation.
  • Vents
  • Ventilation channels

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Тематика: Автоматические системы пожаротушения и связь Пожарная безопасность Техника безопасности и санитария
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