英语语法分析

Callus induction and redifferentiation of black chokeberry leaf in vitro were studied.

研究了黑苦莓叶片愈伤组织的诱导和再分化。

The discussion was centred on dedifferentiation and redifferentiation.

重点讨论了去分化与再分化问题。

The study on callus induction and redifferentiation of achyranthes bidentata bl.

怀牛膝愈伤组织诱导及分化的研究。