vascular cambium

• 维管形成层

vascular cambium的用法和样例：

例句

1. The vascular cambium is located between the xylem and the phloem.
   维管形成层位于木韧之间。
2. Secondary vascular tissue, found only in plants with secondary thickening, develops from the vascular cambium.
   次生维管组织由维管形成层发育而来，仅存在于有次生加厚的植物中。