secondary cambium
英
美
- 次生形成层
双语例句
- 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。
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