the graph illustrates that 
electricity
 is generated from one kind of coal. 
Use synonyms
Overall
, the process contains several complex stages, beginning with coal being exploited, and ending with Linking Words
electricity
 being transacted to residents or factories.
In the first stage, these pieces of big coal are exploited from the mine areas; and Use synonyms
then
 sent to the specialized machines to crush it into the grinds. Linking Words
Afterward
, the mass coal is transported to the gasifier for heating at high degrees to produce the Change the spelling
Afterwards
gas
. 
In the subsequent stage, the Use synonyms
gas
 is sent to the other factory for cooling, and the high-heat Use synonyms
gas
 is emitted outside by chimneys. In the next stage, the hot air is sent to the cleaning treatment through pipes, before generating Use synonyms
electricity
 and continuing to be wasted heat in the Use synonyms
gas
 power plant. Use synonyms
Finally
, the Linking Words
electricity
 is sold to households and industrial consumers.Use synonyms