Distributions of the M-dwarf yield over parameters. The panels represent parameters as follows: stellar magnitude in NUV, u, g, r, i, z, and y bands, distance, stellar mass, effective temperature, companion mass, cosine of inclination, eccentricity, orbital period, semimajor axis, and angular semimajor axis. To compare with the companion yield, the gray lines in panels are plotted to show the property distributions of the FGK-dwarf sample or injected companions. The range between two dashed vertical lines is the magnitude range that the CSST-SC could observe.