a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth
the inner layer of the periosteum
例句
用作名词 (n.)
The vascular cambium is located between the xylem and the phloem. 维管形成层位于木韧之间。
The base of scoin is cut diagonally to expose a large oval of cambium. 接穗的基部被切成斜形，暴露出椭圆形的大圈形成层。
The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium. 维管形成层向两侧延伸直至形成一个茎内的分生组织环，各个维管束被束间形成层联系在一起。
美
['kæmbɪəm]
