Characteristic line profiles observed with the IRAM 30 m telescope in the λ3 mm band toward L483. Left panel: lines with wings and self-absorption (except C¹⁸O J = (1–0)). Middle panel: lines that show wings. Right panel: sample of narrow lines, which form the majority in our line survey. The gray shaded area indicates the velocity range ± 0.5 km s⁻¹ around the systemic velocity of the source.