  We calculate models of extended stellar atmospheres with a temperature in the
range of 12000-40000K and a mass loss rate of $10^{-6}-10^{-4} M_{\odot}$
yr$^{-1}$. A large number of objects with emission spectra, such as luminous
blue variables (LBV), FeII - emission line stars, Of/late-WN stars, and even
ultraluminous X-ray sources (ULXs) often have effective temperatures in this
range. The paper presents the results of model grids calculating in the form of
equivalent width diagrams for the selected lines of hydrogen, He, Si, and Fe,
as well as the results of studies of some emission objects using the calculated
models.
