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In different harvesting seasons, the lignin, holocellulose and pentosan contents in bamboos didn''t change too much.

至于同为化学主要组成分木质、全纤维、聚戊醣等成分,则没有季节变化。

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This article summarized the research development of the reaction characteristic between lignin quinonoid chromophoric group and hydrogen peroxide.

概述了型发色基团与过氧化研究进展。

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The effect of organic expanders including humus acid, lignin,vio-lanthrone and isoviolanthrone on the performances of the lead-acid battery are described.

本文叙述了腐殖酸、、紫蒽酮及异紫蒽酮作膨胀剂对蓄电池影响.

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The changes in chemical structure of residual lignin in reed kraft pulp after treatment with a white rot fungus,Panus conchatus have been investigated in the present paper.

从元组成,功基含量,结构单元三种基团比例和分子量及其分布等方面研究了生物降解纤维酶苇浆残余质。

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Moreover, it was shown that degradation of lignin was promoted by veratryl alcohol added, no effect of veratryl alco-hol on degradation of cellulose and hemicellulose was detected.

黎芦醇加入对纤维降解几乎没有影响,对半纤维降解影响也不明显。

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That means the birch from high longitude and latitude areas will have lower content of the ash, extraction and lignin, higher content of the holocellulose and pentosan in the wood.

这表明,选择较高经纬度地区白桦,可以降低灰分、抽出物、含量,提高综纤维和聚戊糖含量。

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PBS趣味科普

Hardwoods used in BBQ smoke have lots of cellulose and lignin.

烧烤烟熏中使用硬木含有大量纤维素和木质素

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PBS趣味科普

There's the lignin and cellulose of plants, calcium-rich shells of mollusks and coral reefs, and mineral bones like ours.

植物木质素和纤维素,软体动物和珊瑚礁富含钙贝壳,以及像我们这物骨骼。

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PBS趣味科普

And lignin is converted into all kinds of aromatic chemicals that flavor the meat, and can even act as chemical preservatives.

木质素被转化为各芳香化学物质,给肉调味,甚至可以作为化学防腐剂。

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VOA Special 2018年3月合集

The chemicals remove about half of its lignin.

这些化学物质去了大约木质素

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VOA Special 2018年3月合集

It is made by partially removing a natural polymer called lignin.

通过部分去称为木质素天然聚合物制成

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儿童趣味化学

Wood is made up of organic compounds like cellulose and lignin.

木材由有机化合物如纤维素和木质素组成。

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PBS地球-动物趣闻

Wood consists of cellulose fibers and a compound called lignin,   an organic polymer.

木材由纤维素纤维和称为木质素化合物组成,木质素有机聚合物。

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经济学人 Science and technology

Stora Enso, a Finnish forest-products company, reckons it can make anode material from lignin.

芬兰林产品公司 Stora Enso 认为它可以用木质素制造阳极材料

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Brains On! Science podcast for kids

And they're all stuck together with a special kind of glue called lignin.

它们全都通过特殊胶粘在起,这胶叫做木质素

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PBS地球-动物趣闻

But scale trees only produced a small amount of lignin.

鳞片树只产生少量木质素

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Brains On! Science podcast for kids

Well, when you cook the wood chips, the lignin glue separates from the cellulose cells.

当你煮木片时,木素胶就会与纤维素细胞分离。

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英语学习系列1

OK, he says that the fungi break down the lignin and the cellulose. They break down the tree.

好吧,他说真菌会分解木质素和纤维素。他们砍倒了树。

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Brains On! Science podcast for kids

Remember how Sandy said the cellulose cells in trees are stuck together with a natural glue called lignin?

还记得Sandy说过,树木中纤维素细胞叫做木质素天然胶水粘合在吗?

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PBS地球-动物趣闻

The organic component of soil, called humus,   is mostly made up of broken down lignin.

土壤有机成分称为腐殖质,主要由分解木质素组成

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微观旅途

Their walls are full of sturdy lignin, which is responsible for the gritty texture you feel when you bite into a pear.

它们细胞壁充满了坚固木质素,这正你咬到梨时感觉到粗糙质地原因。

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经济学人 Science and technology

The plan is to develop ways of making anode carbon from lignin, a natural polymer found in the cell walls of plants.

该计划开发利用木质素制造阳极碳方法木质素存在于植物细胞壁中天然聚合物。

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Brains On! Science podcast for kids

And that lignin is dissolved and taken away, and most of that lignin goes into the power plant of the mill.

那木质素被溶解并移,其中大部分木质素会进入工厂发电厂, 用于燃烧产生能源。

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TED-Ed(视频版)

The bark covering tree trunks is full of lignin, a rigid web of compounds that's tough to chew and highly impermeable to pathogens.

覆盖在树干上树皮充满了木质素坚硬化合物网, 难以咀嚼,而且病原体极难渗透。

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英语学习系列1

They break down the lignin and the cellulose, which is the most resistant form of carbon, and they break it down, produce mushrooms.

它们分解木质素和纤维素, 这最耐腐蚀碳形式,然后将其分解, 产生蘑菇。

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VOA Standard 2015年8月合集

Velev and Ph.D. student Alexander Richter discovered that silver-based nanoparticles can be replaced with non-harmful nanoparticles based on an organic polymer called lignin, naturally found in most plants.

韦列夫和博士生亚历山大·里希特发现银纳米颗粒可以被无害纳米粒子所代替,它名叫木质素有机高分子绝大多数植物中都能够发现这物质。

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