牙: tooth周: circumference; periphery; ci ...变性: denaturation; denaturalizati ...时: shí]的: 4次方是 The fourth power of 2 i ...骨: bone变化: change; variety; transformat ...牙周变性时的龈变化: gingiva in periodontosis; gingival in periodontosis牙周变性时牙周膜的变化: periodontal membrane in periodontosis牙周变性: periodontal degeneration; periodontosis; perodontosis牙周变性中牙周袋形成: pocket formation in periodontosis弥漫性牙槽萎缩,牙周变性: diffuse alveolar atrophy骨变化: bone change周变化: weekly change牙周膜外伤时的变化: traumatic injury to periodontal membrane太阳周变化: solar cycle variation甲状腺机能亢进时的牙周膜变化: periodontal membrane in hyperthyroidism牙周膜在蛋白质缺乏时的变化: periodontal membrane in protein deficiency牙周膜在维生素b缺乏时的变化: periodontal membrane in vitamin b deficiency牙周膜纤维变性: pericemental fibrosis缺乏营养时的骨组织: bone in deficiency diets骨变形: ostealleosis边缘牙周炎时的渗出物: exudate in marginal periodontitis边缘性牙周炎时的炎性细胞: inflammatory cells in marginal periodontitis发电机变速时的电压变化: voltage variation with speed of a generator; voltage variation with speed of generator