“periodontal disease”的概念、定义、翻译、参考文献-科学参考

单词	periodontal disease
释义	periodontal disease Encyclopedia 医学〔口腔病证〕释 periodontal disease牙宣以龈肉萎缩、齿根宣露、牙齿松动、经常渗出血液或脓液为特征的牙科病证。出现本病若不及时治疗，日久牙齿会因失去气血濡养而脱落。本病相当于现代医学的牙周病。
随便看	village elections village fair village governance system village group Village Head Election Village in August village in the city village-level eco-economic niche village-level survey village office Village Officer village of new harmony village planning village planning content village planning land classification village planning methods village planning system village protection forest village retention fee village road villager participation villager resettlement villagers agreement villagers assembly villagers' autonomous organization

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。