The added exogenous hormone and poly amino acid to culture medium can improve the inductivity of embryoid, increasing averagely 59.64% than that of the contrast.

在培养基中加入外源激素和多种氨基酸可以提高胚状体的诱导效率，平均比对照增加59.64%；

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Methods Coated PLA, PGA, PLGA with poly-l-lysine, free chondrocytes isolated from rabbit articular cartilage were seeded onto three kinds of scaffolds after expansion by in vitro culture.

方法多聚赖氨酸包埋PLA，PGA，PLGA三维细胞支架。 分离培养兔关节软骨细胞，体外扩增后种植到三种支架中。

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Poly WeDo is a new children's education brand of Poly Culture Group, which aims at exploring and developing kids' gift and potentiality in music, and improving their comprehensive art accomplishment.

保利WeDo是保利文化集团旗下的新型儿童教育品牌，旨在挖掘和培养孩子在音乐方面的天赋和潜能，提高综合艺术修养。

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