Description

A large, blue, and yellow structure is shown in a diagram. The structure is described as a "spectral line" and is labeled with various terms such as "plasma," "flame," and "spectral line." The diagram is labeled with a variety of terms, including "processing," "spectral line," "flame," and "plasma." The structure is described as a "spectral line" and is labeled with various terms such as "plasma," "flame," and "spectral line."