Definition

1. Noun:
   • Coal dust: A fine, powdery form of coal, consisting of small particles and fragments. It is a byproduct of coal mining, processing, or handling.

Usage Examples

• Noun:
  • Công nhân hít phải than cám rất nguy hiểm. (Workers inhaling coal dust is very dangerous.)
  • Họ sử dụng than cám để đốt lò. (They use coal dust to fuel the furnace.)
  • Than cám bám đầy trên sàn nhà máy. (Coal dust covered the factory floor.)

Advanced Usage

• The term is used in industrial, mining, and energy contexts to specify the fine, particulate form of coal, often contrasted with lump coal.
  • Loại lò này được thiết kế để đốt than cám hiệu quả. (This furnace type is designed to burn coal dust efficiently.)

Variants and Related Words

• Than bột: A synonym often used interchangeably with "than cám" for pulverized coal.

  • Than bột được phun vào buồng đốt. (Pulverized coal is injected into the combustion chamber.)

• Than cục: Lump coal (the opposite form, consisting of larger pieces).

  • Chúng tôi cần cả than cục lẫn than cám. (We need both lump coal and coal dust.)

Synonyms

• Coal fines: A technical synonym used in mining and industry.
• Pulverized coal: Especially when referring to coal ground into a fine powder for combustion.

Notes on Usage

• "Than cám" is a compound noun. The word "cám" alone means "bran" (as in rice bran), but in this compound, it metaphorically describes the fine, powdery consistency similar to bran. The primary meaning of the compound is specifically "coal dust."
• It is typically an uncountable noun when referring to the material in bulk.

noun

1. coal dust