Take the historical veracity of the xia as an arti .

学家把夏的历史真实性视为一种信仰。

Objective to delineate the biological feature s between the transformed human arti cular chondrocytes and normal chond ro-cytes .

目的比较转化人关节软骨细胞与正常软骨细胞之间的生物特性。