Ground state properties of recently discovered Ddd-A nuclei near the partic
le-drip-line have been investigated in the relativistic mean-field model. S
pecial emphasis is placed on the effect of the spatial component of vector
meson fields on ground state properties which is due to breaking of time re
versal invariance for odd-A nuclei. Calculations show that its contribution
to binding energies, radii and single particle energies is small but canno
t be neglected completely for some drip-line nuclei because the last nucleo
n in them is very weakly bound. Calculated binding energies are in reasonab
ly good agreement with present experimental data and estimated values in ma
ss tables. The structure of newly discovered nuclei is also discussed.