Cách sử dụng
A refinery is a big factory where crude oil is turned into useful things like gasoline, diesel, and other fuels that we put in our cars. These factories also make other substances like lubricants and chemicals that are used in many different industries. Refineries are usually located near oil fields or ports where the crude oil can be easily transported to them. The word can also be used in other contexts, such as a sugar refinery where sugar is processed from raw materials.