انفجار (ترکشی)
preferred label: explosion @en
type: Concept
related: خطر گاز

خطر
preferred label: hazard @en
type: Concept
narrower: خطر گاز

خط‌لوله نفت
preferred label: petroleum pipeline @en
type: Concept
related: خطر گاز

گاز زغال
preferred label: firedamp @en
type: Concept
related: خطر گاز

خطر گاز
related: خط‌لوله نفت
related: گاز زغال
related: انفجار (ترکشی)
broader: خطر
preferred label: gas hazard @en
type: Concept