Two-center　holographic　recordings　of　angle-multiplexed　holographic　patterns　are　experimentally　performed　in　LiNbO3:Ce:Cu　crystals　with　gating　light　at　365nm　and　recording　light　at　633nm.　The　noise　characteristics　of　the　holograms　are　analyzed.　50　holograms　with　almost　equal　diffraction　efficiencies　are　multiplexed　in　a　LiNbO3:Ce:Cu　crystal　by　using　equal-time　exposure　schedule　.The　average　efficiency　reaches　7.64×10-6.