| 释义 |
vascular bundles
释义
维管束：植物茎、叶或根中的维管束，用于输送水分、养分和有机物质。
例句
1·There were phloem fiber bundle of stem outside vascular bundles .
茎微管束外具韧皮纤维束；
2·Sepals contain several vascular bundles , and are thought to be derived from leaves.
根据萼片内的许多维管束结构，通常认为其由叶发育而成。
3·The number of vascular bundles in neck-panicle was mainly controlled by genetic factors.
穗颈维管束数主要受遗传因素控制，环境条件的影响相对较小。
同义词
维管束
vascular cylinder
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