But insects and crustaceans build exoskeletons made from chains of modified sugars called chitin.
但是昆虫和甲壳类动物的外骨骼是由被称为甲壳素的修饰糖链制成的。
chitin
/'kaɪtɪn/ /'kaɪtɪn/
英汉-汉英词典
n. 壳质,角素
形容词: chitinous
词组 | 习惯用语
您要查找的是不是：
- chatting v. 聊天（chat的ing形式） n. 闲聊
网络短语:
chitin and chitin amine fiber 甲壳质纤维
oxidated chitin 氧化甲壳素
chitin synthetase 几丁质合成酶; 的几丁质合成酶;
deacetylation chitin 脱乙酰甲壳质
sulfated chitin 硫酸化甲壳质
chitin enzymology 几丁质酶学
butyryl chitin 二丁酰甲壳质
chitin chit 几丁质
ultrafine chitin 超细甲壳素
chitin decomposer 几丁质分解者
英语例句库
- The essence of deacetylation reaction of chitin was the hydrolysis of N-alkyl ethanamide.
摘要甲壳质脱乙酰化反应其本质是N-烷基乙酰胺的水解。 - Chitin and chitosan have been prepared by the methods of EDTA and HCl with the shell of shrimp and Squilla Oratoria as raw materials.
以虾壳和虾蛄壳为原料分别采用EDTA法和盐酸法制备了甲壳素和壳聚糖。The essence of deacetylation reaction of chitin was the hydrolysis of N-alkyl ethanamide.
摘要甲壳质脱乙酰化反应其本质是N-烷基乙酰胺的水解。
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原声例句
PBS趣味科普
PBS趣味科普
The outer layer of a beetle's body is made of this super stiff polymer called chitin.
甲虫身体的外层是由一种叫做甲壳素的超硬聚合物制成的。
PBS趣味科普
And these special nanostructure arrangements make chitin exoskeletons incredibly tough for their weight.
这些特殊的纳米结构排列使甲壳素外骨骼相对于它们的重量惊人地坚固。
透视百科科技类
Through chemical processes, all that chitin can be turned into chitosan, which is where The Shellworks comes in.
经过化学处理后，所有的几丁质转变成壳聚糖，这时候 The Shellworks 登场。
科学60秒-科学美国人 2022年7月合集
These are made of a naturally occurring polymer called chitin, which is a polymer you find in most insect and crustacean exoskeletons.
这些鳞片是由一种叫做甲壳素的天然聚合物构成的，而在大多数昆虫和甲壳类动物的外骨骼中都能找到这种甲壳素的聚合物。
PBS地球-动物趣闻
And chitin is also the basis for arthropod exoskeletons.
几丁质也是节肢动物外骨骼的基础。
PBS人体科学
These special nanostructure arrangements make chitin exoskeletons incredibly tough for their weight.
这些特殊的纳米结构排列使几丁质外骨骼相对于它们的重量来说非常坚韧。
新TPO听力
18. And here's where chitin comes in.
这就是角素的来源。
PBS地球-动物趣闻
Fungi support their cell walls with a starchy polymer called chitin.
真菌用一种叫做几丁质的淀粉质聚合物来支撑它们的细胞壁。
新TPO听力
And that's thanks in part to a substance in their cell walls called chitin.
而这某种程度上要感谢它们细胞壁中一种叫做角素的物质。
中文百科
甲壳素
甲壳素（英语：Chitin，IPA:英语发音：/ˈkaɪtɨn/ KY-tin，日语音译为キチン质），分子结构「C8H13O5N)n」，又名「几丁质」、「几丁聚糖」、「几丁寡糖」、「甲壳质」或「壳多糖」，是一种含氮的多糖类物质，为虾、蟹、昆虫等甲壳的重要成分，化学名为8-(1,4)-2-乙酰氨基-2-脱氧-D-葡聚糖，也称为聚（N-乙酰基-D-葡糖胺）。
几丁质为为长链状聚合物，是由约8000个葡萄糖的衍生物，N-乙酰葡糖胺作为单体聚合而成，是自然界的一种半透明而坚固的材料，常见于真菌的细胞壁和节肢动物（如虾、蟹）或昆虫的外骨骼。几丁质与属多糖的纤维素类似，都会构成奈米纤维或细毛状的晶体结构。在实际功能上，则近于构成皮肤的角蛋白，因为具有这些特性，几丁质在医学和工业上具有实用价值。
英语百科
Chitin 甲壳素
Chitin (C8H13O5N)n (/ˈkaɪtᵻn/ KY-tin) is a long-chain polymer of an N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world. It is a characteristic component of the cell walls of fungi, the exoskeletons of arthropods such as crustaceans (e.g., crabs, lobsters and shrimps) and insects, the radulae of molluscs, and the beaks and internal shells of cephalopods, including squid and octopuses and on the scales and other soft tissues of fish and lissamphibians. The structure of chitin is comparable to the polysaccharide cellulose, forming crystalline nanofibrils or whiskers. In terms of function, it may be compared to the protein keratin. Chitin has proved versatile for several medical, industrial and biotechnological purposes.
近义、反义、联想词
近义词
n.polysaccharide, polyose
联想词
英英词典
chitin n.
- a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi
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