| 释义 |
DEFINITIVE EXAMPLES 权威例句〔leaf primordium〕A lateral outgrowth from the apical meristem that develops into a leaf.叶基:从顶端分生组织中生出的侧部突起,最终发育成叶子美国传统〔sheath〕Biology An enveloping tubular structure, such as the base of a grass leaf that surrounds the stem or the tissue that encloses a muscle or nerve fiber.【生物学】 鞘,兜:一种包围的管状结构,例如围绕茎的草叶基部或包围肌肉或神经纤维的组织美国传统〔stipel〕A minute stipule at the base of a leaflet.小托叶:小叶基部的小托叶美国传统 |