than khí

Than khí bốc lên từ đống than hồng trong lò sưởi.

Definition

1. Noun:
   • Coal gas / Firedamp: A flammable gas, primarily methane, that is naturally emitted from coal seams or is produced when coal burns or undergoes destructive distillation.

Usage Examples

• Noun:
  • Các thợ mỏ phải cẩn thận với than khí vì nó có thể gây nổ. (Miners must be careful with firedamp because it can cause explosions.)
  • Than khí được thu lại trong quá trình luyện than cốc. (Coal gas is collected during the coking process.)
  • Sự tích tụ than khí là mối nguy hiểm lớn trong hầm mỏ. (The accumulation of firedamp is a major hazard in mines.)

Advanced Usage

• The term is often used in historical or industrial contexts related to mining, metallurgy, and early gas lighting systems.

Variants and Related Words

• Khí mỏ than: A synonym for "than khí," specifically meaning mine gas or firedamp.
• Khí than: A more general term for gas derived from coal, which can include manufactured town gas.

Synonyms

• Firedamp: (Specifically for the explosive gas mixture in mines)
• Coal gas: (For the gas produced from coal)
• Methane: (The primary component of natural firedamp)

Related Concepts

• Nổ khí mê-tan: Methane explosion.
  • Vụ nổ than khí đã làm sập một phần hầm mỏ. (The firedamp explosion caused a partial mine collapse.)