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It is found that the fiber of phloem of broussonetia is irregular elliptoid at cross section.

同时发现构皮纤截面是带有腔不规则形结构,且呈束纤分布。

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Actinostele A rype of protostele in which the xylem is star shaped and the phloem lies between the points of the star.

原生一种类型。木质部是星形,韧皮部位于星形之间。

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This had similar mercury levels to the phloem.

树皮汞含量与韧皮部相近。

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Crash Course 学篇

The companion cells are the little guys scattered throughout the larger phloem cells.

伴生胞是分散在较大韧皮部胞中胞。

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Right beside the phloem is the tree's other tissue type: the xylem.

就在韧皮旁边是树另外一种组叫木质。

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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

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Crash Course 学篇

And there are two main types of cells that make up that vascular tissue: xylem and phloem.

维管组胞主要有两种:木质部和韧皮部。

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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部位沉积。

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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。

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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,它将光合作用输送到树根部。

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Crash Course 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,我们会注意到它木质部和韧皮部胞依偎在一起,就像它们在茎中一样。

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TED-Ed(视频版)

Right beside the phloem is the tree’s other tissue type: the xylem.

韧皮部旁边是树另一种组类型:木质部。

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Carbon and water, more than 1,000 liters of water, in fact, flow freely through the phloem and xylem tubes carry it along.

碳和水,实际上超过 1000 升水,自由流动于韧皮部和木质部管道中。

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By the end of its journey, the phloem sap has thinned into a watery substance, pooling at the base of the tree.

这个旅程最后,韧皮树液变很稀,类似水一样质,聚集在树底部。

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Containing the sugars generated in leaves during photosynthesis, phloem sap is thick, like honey, and flows down the plant's phloem tissue to distribute sugar throughout the tree.

包含树叶光合作用产生分,韧皮树液很稠,像蜂蜜,沿着韧皮组向下流动把份送到树各个部分。

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Crash Course 学篇

Xylem and phloem are bundled together to form the veins of a plant — the subway map that connects the leaves, stem, and roots.

木质部和韧皮部捆绑在一起形脉络——连接叶子、茎和根地铁地图。

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Crash Course 学篇

So the xylem cells are transporting nutrients from the roots to the leaf, and the phloem are taking the freshly made sugar from the leaf to the rest of the plant.

所以木质部胞将营养质从根输送到叶,韧皮部将新鲜从叶输送到其他部分。

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Here at the tree's base, there are more of these particles in one tissue than the other, so the water from the phloem sap is absorbed into the xylem to correct the balance.

在树根部,这些组微粒分布不均匀,因此,韧皮树液中水分被吸收到木质中,来调节平衡。

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Crash Course 学篇

The xylem cells, which are moving water and nutrients up through the stem, are clumped toward the inside of the bundle, and the phloem, which is transporting sugars down through the plant, is clustered toward the outside.

木质部胞负责将水分和营养质通过茎部向上输送,它们向束内部聚集,韧皮部负责将分向下输送,它们向束外部聚集。

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TED演讲(视频版) 2023年8月合集

The ability to perceive the world through the eyes and ears of other beings, through the phloem and xylem of trees, even reconnects us, humans, to the fantasticand richly diverse network of organisms that make up our shared Earth.

通过其他生眼睛和耳朵、树木韧皮部和木质部来感知世界能力,甚至将我们人类与构我们共同地球奇妙而丰富多样体网络重新连接起来。

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