形成層

xíngchéngcéng

A meristem organ all across the root, the xylem and bast section of the stem, which can make the root or stem grow thicker.

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xing2 cheng2 ceng2

vascular cambium (layer of tissue responsible for growth inside wood)

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形成層|形成层 [xíng chéng céng] ► vascular cambium (layer of tissue responsible for growth inside wood)