| 单词 | 形成层 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔bark〕The tough outer covering of the woody stems and roots of trees, shrubs, and other woody plants. It includes all tissues outside the vascular cambium.树皮，茎皮：包在树、灌木和其它木本植物的根部、茎部的硬皮，包括维管形成层外的所有组织美国传统〔cambium〕A lateral meristem in most vascular plants that forms parallel rows of cells resulting in secondary tissues either as secondary growth or as cork.形成层：大多数导管植物中靠近边缘的分生组织，它形成植物细胞组成的平行的行列，导致产生二次组织、二次增生或长成软木美国传统〔girdle〕To remove a band of bark and cambium from the circumference of (a tree), usually in order to kill it.剥去树皮：剥去树周围的树皮带或形成层，通常是为了杀死树美国传统〔interfascicular cambium〕The cambium arising between the vascular bundles.束间形成层：维管束之间的形成层美国传统〔lateral meristem〕A meristem in vascular plants, such as the cambium, in which secondary growth occurs.侧分生组织：可形成再生的维管植物分生组织，如形成层美国传统〔nail bed〕The formative layer of cells at the base of the fingernail or toenail; the matrix.甲基质：在指甲或趾甲的底层细胞的形成层；基质美国传统〔periderm〕The outer layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it, such as cork.周皮：木质根或干的外层组织，包括软木形成层和形成层的产物，如软木美国传统〔primary tissue〕Any of various tissues derived from a primary meristem, such as the precambium, protoderm, or ground meristem.初级组织：多种由初级分生组织分化生成的组织，例如原始形成层、原始表皮或是基底分生组织美国传统〔procambium〕A type of undifferentiated plant tissue that gives rise to vascular tissue.原始形成层：植物分层组织的种类，产生维管束组织美国传统〔protoxylem〕The first formed xylem that differentiates from the procambium.原生木质部：最先形成的木质部，与原形成层不同美国传统〔vascular cambium〕A lateral meristem that produces secondary xylem to the inside and secondary phloem to the outside.维管形成层：一种横向的分生组织，向里面产生补充的木质部并向外产生补充的韧皮部美国传统 |
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