| 单词 | 叶鞘 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔endodermis〕The innermost layer of the cortex that forms a sheath around the vascular tissue of roots and some stems.内皮层：皮层的最内层，在根、茎的导管组织周围形成一道叶鞘（茎衣）美国传统〔node of Ranvier〕A constriction in the myelin sheath, occurring at varying intervals along the length of a nerve fiber.郎飞氏结：髓磷脂叶鞘上的阻塞物，沿叶脉纤维长度长在不同间隔处美国传统〔ocrea〕A sheath formed at the node of a stem by the fusion of two stipules, as in the rhubarb plant.托叶鞘：两片托叶接合于枝干的结上而形成的一种鞘，如在大黄属植物中美国传统〔vagina〕Botany A sheathlike structure, such as the leaf of a grass that surrounds a stem.【植物学】 叶鞘：鞘状结构，例如一种围绕茎的草叶美国传统 |
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