|
1
|
refine
|
United States
|
Refining of oil is a major industry, with large refineries processing crude oil into various petroleum products.
|
1
|
|
2
|
refine
|
United States
|
Refining typically refers to the process of improving something, such as refining oil or refining a skill.
|
1
|
|
3
|
refining
|
United States
|
Refining of crude oil into various petroleum products is a major industry, with large refineries dotting the landscape.
|
1
|
|
4
|
refining
|
United States
|
Refining of oil and gas is a major industry
|
1
|
|
5
|
refining
|
United States
|
Refining of crude oil is a major industry and important for energy production.
|
1
|
|
6
|
refining
|
United States
|
Refining of oil is a key process in the production of gasoline and other petroleum products.
|
1
|