This had similar mercury levels to the phloem.
树皮的汞含量与韧皮部相近。
phloem
/'fləʊem/ /'floɛm/
英汉-汉英词典
n. [植]筛部，韧皮部
词组 | 习惯用语
您要查找的是不是：
- phylum n. 语系；门（分类）
- Philomena n. 菲洛米娜(f.)
phloem fiber [纺] 韧皮纤维
phloem sap 韧皮汁液
phloem transport 韧皮运输
phloem ray 韧皮放射组织,韧皮射线
phloem fibre 韧皮纤维
primary phloem 初生韧皮部
网络短语:
interxylary phloem 木间韧皮部
intraxylary phloem 内生韧皮部
phloem unloading 韧皮部卸出；韧皮部卸载；第三节
phloem protein 笋瓜韧皮部蛋白
phloem element 韧皮部分子
perimedullary phloem 环髓皮部
intraxylar phloem 材内韧皮部
phloem island 韧皮岛; 韧皮部岛;
英语例句库
- It is found that the fiber of phloem of broussonetia is irregular elliptoid at cross section.
同时发现构皮纤维的横截面是带有中腔不规则的椭圆形结构，且呈束纤维分布。 - Actinostele A rype of protostele in which the xylem is star shaped and the phloem lies between the points of the star.
星状中柱：原生中柱的一种类型。木质部是星形的，韧皮部位于星形之间。 - Plenty of laticiferous tubes were included in roots, stems and leaves.Intraxylary phloem formed around the pith.
髓的外围形成一环内生韧皮部，这些结构特征使罗布麻能更好的适应干旱、盐碱等恶劣环境。It is found that the fiber of phloem of broussonetia is irregular elliptoid at cross section.
同时发现构皮纤维的横截面是带有中腔不规则的椭圆形结构，且呈束纤维分布。 - Actinostele A rype of protostele in which the xylem is star shaped and the phloem lies between the points of the star.
原生中柱的一种类型。木质部是星形的，韧皮部位于星形之间。
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原声例句
经济学人-科技
Crash Course 植物学篇
The companion cells are the little guys scattered throughout the larger phloem cells.
伴生细胞是分散在较大韧皮部细胞中的小细胞。
双语版 TED-Ed 演讲精选
Right beside the phloem is the tree's other tissue type: the xylem.
就在韧皮的旁边是树的另外一种组织叫木质。
生物学基础入门
Through that space stretches the vascular bundle, with xylem to transport water and phloem which transport sugars after photosynthesis.
通过这个空间，延伸出维管束，木质部负责运输水，韧皮部负责在光合作用后运输糖。
Crash Course 植物学篇
And there are two main types of cells that make up that vascular tissue: xylem and phloem.
构成维管组织的细胞主要有两种：木质部和韧皮部。
经济学人-科技
Mercury is carried there by the phloem and selectively deposited in it, rather than in the plants' more permanent parts.
汞通过韧皮部被转运到树皮中，有选择性地在其中沉积，而非在自己不易更新的部位沉积。
TED演讲（视频版）双语精选
Carbon travels through the phloem into the branches, down the tree trunk and even all the way down to the soil.
碳通过韧皮部传到树枝，沿着树干甚至一路传到土壤中。
经济学人-科技
A second set of channels, the phloem, found just under a tree's bark, carries the products of photosynthesis to the roots.
第二组通道叫韧皮部，就长在树皮之下，它将光合作用的产物输送到树的根部。
Crash Course 植物学篇
And if we zoom in, we'll notice its xylem and phloem cells snuggled together, just like they were in the stem.
如果我们放大，我们会注意到它的木质部和韧皮部细胞依偎在一起，就像它们在茎中一样。
TED-Ed（视频版）
Right beside the phloem is the tree’s other tissue type: the xylem.
韧皮部旁边是树的另一种组织类型：木质部。
中文百科
韧皮部
韧皮部是维管植物的运输组织，负责将光合作用的产物——葡萄糖，由进行光合作用的器官运输到植物的其他部位。
由筛分子,薄壁组织和厚壁组织细胞构成.
包括筛管和筛胞。
筛管分布于被子植物,成熟后的筛分子会损失掉大部分细胞器，只能由旁边的伴胞提供营养。筛分子和伴胞来源于同一筛母细胞。筛管分子顶端相互连接，胞壁之间穿孔，形成筛板。联络索通过筛板孔上下贯穿，以调节运输。伴胞通过原生质丝与筛管分子联系，保持筛管分子的形态与渗透压，并为之提供营养和能量。
筛胞则存在于蕨类和裸子植物的韧皮部。筛胞和筛管分子结构相似，但并无筛板。筛胞由蛋白质细胞(protein cell)（在松树的针叶横切面可见），又名斯特拉斯堡细胞，提供营养。但蛋白质细胞和筛胞并不来自同一母细胞。
英语百科
Phloem 韧皮部
In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), in particular, sucrose, a sugar, to all parts of the plant where needed. In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Greek word φλοιός (phloios) meaning "bark". The phloem is concerned mainly with the transport of soluble organic material made during photosynthesis. This process of transportation is called translocation.
近义、反义、联想词
近义词
n.vascular tissue
联想词
英英词典
phloem n.
- (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes
synonymous： bast
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