根据子叶节区理论和方法对胡萝卜幼苗初生维管系统进行了解剖学研究。

After making an anatomic study on the primary vascular system of their seedlings based on the theory and method of cotyledon node zone.

youdao

根据子叶节区理论和方法对胡萝卜幼苗初生维管系统进行了解剖学研究。

After making an anatomic study on the primary vascular system of their seedlings based on the theory and method of cotyledon node zone.

youdao