Study Design. Biomechanical roles of anterior and posterior portions of the disc (AD and PD, respectively) in governing posterior facets (PF) behavior of a C5-C6 motion segment.
研究设计：研究椎间盘前、后部分（分别为AD和PD）在调节C5-C6运动节段后方小关节面（PF）活动的生物力学作用。
They take the 1500 AD and 15-16th century respectively as the basic historical points of phases division.
他们分别将1500年和15、16世纪作为世界历史的基本分期年代。
Dementing illnesses comprise Alzheimer's disease (AD), Pick's disease, Multi infarct dementia (MID) and other neurological disorders. These diseases have different clinical characters respectively.
痴呆类疾病可分为阿尔茨海默病(AD)、皮克病、多发性梗死性痴呆(MID)等类型，它们各具不同的临床特点。
Two different methods for recycling ligand were tried in AD and AA reactions, respectively.
并采用两种不同的方法进行AD和AA反应中配体的回收和重复使用。
Two different methods for recycling ligand were tried in AD and AA reactions, respectively.
并采用两种不同的方法进行AD和AA反应中配体的回收和重复使用。
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