【hēi méi】

  1. black coal
Generated definitions (experimental)
  1. black coal
  2. This term refers to a type of coal that is characterized by its dark color, typically used as a fuel source for energy production.
Generated collocations (experimental)
black coal minehigh calorific value black coalblack coal miningblack coal resourcesblack coal priceblack coal transportationhigh-quality black coalblack coal power generationblack coal marketblack coal reserves