Investigation on the relation between sitting posture comfort and time by stress distribution analysis of l4-l5 centrum .
基于l4-l5椎体受力分析对坐姿舒适性与时间关系研究。
Centrum use and progression of age-related cataract in the age-related eye disease study .
年龄相关性眼病研究（areds）中善存应用与年龄相关性白内障进展的关系。
As the centrum of economy , risk management is the key of survival and development for commercial bank , which is decided by its industrial characters-high risk and high liability .
