Abnormal development was observed at tetrad and mature embryo sac.
在四分体和成熟胚囊时期观察到了异常发育现象。
During the preimplantation embryo development, we can find many abnormal cells especially in the process of in vitro culture.
早期胚胎发育过程当中伴随着大量的发育异常的细胞，尤其在体外培养过程中更为普遍。
Abnormal development of heart and blood vessels in embryo with the result that defect of heart and cardiac vessels is called congenital heart disease (CHD).
胎儿时期心脏血管发育异常而致的心脏和心脏大血管畸形称先天性心脏病(CHD)。
Abnormal development of heart and blood vessels in embryo with the result that defect of heart and cardiac vessels is called congenital heart disease (CHD).
胎儿时期心脏血管发育异常而致的心脏和心脏大血管畸形称先天性心脏病(CHD)。
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