Cách sử dụng
The word refractory means difficult to control or difficult to manage, typically used to describe a person's behavior. It can also refer to a material that is resistant to heat or chemicals. For example, a child who refuses to follow instructions and is defiant could be described as refractory. Additionally, a material that is used for lining furnaces or kilns that can withstand extreme heat and resist wear and tear is also known as refractory.