ORFEUS II observation (black) compared with our best model with (blue) and without (red) interstellar line absorption considered. v_rad = 140 km/s and v_rot = 37.5 km/s are applied to our model. Stellar lines are identified at top. Prominent PCyg profiles of N IV λ λ 922.0, 922.5, 923.1, 924.3Å, N V λ λ 1238.8, 1242.8 Å, and S VI λ λ 933.4, 944.5Å are indicated by horizontal bars. The green marks at the bottom of each panel indicate wavelengths and strengths (mark lengths ∼ log g f value of the respective line) of prominent iron-group (Ca−Ni) lines.