1. Repair immediately when the lacuna is discovered. ����ȱ�ݺ�����������
2. Our increased awareness of the scarcity value of environmental resources makes this lacuna especially troubling. ���ǶԻ�����Դϡȱ��ֵ��ʶ����ǿ�������ֺ���������Ϊ���ġ�
3. Objective To analyze the operational method in repairing the prosthesis displacement in mammoplasty due to the exceed dissection lacuna. Ŀ�ģ�������¡�����������ڰ���ǻ϶�����¼�����λ������������
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n.
1. a blank gap or missing part
2. an ornamental sunken panel in a ceiling or dome