Example of cluster sources in three cases. Top panel: the cluster sources in normal case. Middle-panel: example of clusters consists of over-resolved sources are listed in Table 4. Bottom panel: example of clusters with semi-ring-like fragments. In this case, the sources with semi-ring-like structures have been removed from the catalog. The positions of 7σ cluster sources are noted by blue and white pluses. The Galactic name of each figure refers to the source in the center position. The cyan contours are emission from B-configuration images (this work), starting at 5σ with 5σ increment. The background of each image presents the B+D configuration of GLOSTAR (Brunthaler et al. 2021). The FWHM beams of B (1″.0) and B+D configuration (4″.0) are presented by the white circles in the lower-right and lower-left corners of each image.