| 单词 | 筛管 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔companion cell〕A specialized parenchyma cell, located in the phloem of flowering plants and closely associated in development and function with a sieve-tube element.伴细胞：一种特殊的软组织细胞，位于开花植物的韧皮部，生长和功能与筛管要素密切联系美国传统〔phloem〕The food-conducting tissue of vascular plants, consisting of sieve tubes, fibers, parenchyma, and sclereids.韧皮部：导管植物的食物传导组织，包括筛管、纤维、薄壁组织和硬化细胞美国传统〔sieve plate〕The perforated end wall of a sieve tube cell.筛板：筛管细胞中有筛孔的隔板美国传统〔sieve tube〕A series of cells joined end to end, forming a tube through which nutrients are conducted in flowering plants and brown algae.筛管：一系列细胞尾对尾连接成的一条管子，在有花植物及褐藻中养分经此传送美国传统 |
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