Cross-matching JVLA 1.3 cm emission with dbcat. The background color map shows the ALMA 1.3 mm (cyan) and 3 mm (red) continuum emission. The overlaid yellow contours are JVLA 1.3 cm continuum emission. For the the 20 km s⁻¹ cloud, the contour levels are 0.5, 0.8, 1.3, 2.1, 3.4, 5.5, 8.9, 14.4 mJy beam⁻¹. For the cloud e, they are 0.105, 0.210, 0.315 mJy beam⁻¹. For the Sgr C, they are 0.25, 0.50, 1.0, 2.0 mJy beam⁻¹. All the identified UCHII region candidates are marked with “H”s followed by ID numbers.