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DHA is particularly important for the normal function of the brain and nerves, and for development of normal eyesight.

尤其重要的是二十二碳六烯酸的正常功能的大脑和神经,并发展正常视力。

The paint includes liquid A, which consists of acrylic resin, mixed solvent of xylene, acetone and isophorone, organic silicone solution, superfine silica powder, titanium dioxide powder, methyl-(N-beta-amino ethyl gamma-amino propyl)-dimethoxy siloxane solution, gamma-methyl acrylyloxy propyl tromethoxy siloxane solution and fluorocarbon modified siloxane; and liquid B, which consists of hexamethylene diisocyanate, polydiisocyanate, xylene, and methoxy propyl acetate. When the paint is used, two components are mixed together.

由丙烯酸树脂、二甲苯和丙酮及异佛尔酮混合溶剂、有机硅酮溶液、超细二氧化硅粉、钛白粉、甲基(N-β-氨乙基γ-氨丙基)二甲氧基硅烷溶液、γ-甲基丙烯酰氧基丙基三甲氧基硅烷溶液、氟碳改性硅氧烷溶液组成A液,由六亚甲基二异氰酸酯聚异氰酸酯、二甲苯和甲氧基乙酸丙酯混合溶液组成B液,使用时将两组分混合。

Luzoniana collected from the South China sea were studied. A compound, isolated from the soft coral, was found to be a bicyclic diterpene alcohol with a rearranged dolabellane skeleton.

应用波谱和X-射线单晶衍射分析等方法确定Ⅰ为具有变形dolabellane型碳架的双环二萜醇:(3 E,5 S,7 E,11 S,12 S,14 Z)-11-甲基-15-降dolabella-3,7,14-三烯-5-醇(图1)。

The Nazarov cyclization, a powerful tool for the construction of five-membered carbocycles from divinyl ketones and related compounds, has attracted increasing attention in recent years due to its wide applications in the synthesis of complex natural and unnatural products.

Nazarov环合反应是通过二烯酮类物质和类似化合物构建五元碳环的有效方法。由于该方法广泛地应用于复杂天然和非天然产物的合成,近年来引起人们的广泛关注。

6 Ppm and 116.8 ppm, attributable to the two tertiary ethylenic carbon atoms

118.6 ppm和116.8 ppm:两个烯基叔碳原子-这样翻译对吗?

A with under strong base butyl Lithium, Wittig reaction was carried out, after cast off extremital 2,3-dihydropyran which protected hydroxy group, then 5,14-gadoleyl-1-ol was obtained.

a与在强碱正丁基锂的作用下进行Wittig反应,然后脱去末端的2,3-二氢吡喃保护基,得到5, 14-二十碳二烯醇。

In the thesis, we wish to report the synthesis and structures of a series of new type rigid conjugated nanometer-sized fulvene ligands, and coordination polymeric compounds based on both metal-carbon and metal-heteroatom interactions and also H-bonded supramolecular architectures generated from this new type of fulvene ligands.

基于此,我们合成了一系列刚性共轭的纳米级富烯类配体,并以之与过渡金属离子反应合成了同时基于金属-碳和金属-杂原子两种键合作用的有机-无机配位高聚物及以氢键作用为驱动力的超分子聚集体。

Carbohydrates such as sucrose, glucose, maltose fermentation by Hagan may also be obtained fumaric acid.

碳水化合物如蔗糖、葡萄糖、麦芽糖经黑根菌发酵也可制得反丁烯二酸。

The main components were myristic acid (19.37%), palmitic acid methyl ester(7.56%), lascorbic acid 2,6dihexadecanoate(6.27%), 8,11octadecadienoicacid methyl ester(5.22%), heptadecane(4.82%), lauryl ethoxylate(2.98%), 2isopropyl5methyl1heptanol (2.62%), tetracosanoic acid methyl ester(2.12%),2ethyl2methyltridecanol (2.08%), et al.

其化学成分主要为肉豆蔻酸(19.37%),棕榈酸甲酯(7.56%),2,6十六烷基1抗坏血酸酯(6.27%),8,11十八碳二烯酸甲酯(5.22%),十七烷(4.82%),十二烷基乙氧基醚(2.98%),2异丙基5甲基1庚醇(2.62%),二十四烷酸甲酯(2.12%),2乙基2甲基十三醇(2.08%)等。

ConclusionThe main components of essential oils are 2,4-bis(1,1-dimethylethyl) phenol (4.4%), tetradecanoic acid (6.96%), n-hexadecanoic acid (7.69%), 9,12-cctadecadienoic acid (6.37%), hexadecanoic acid-2-hydroxy-1- ethyl ester (4.79%) and octadecanoic acid-2-hydroxy-1- ethyl ester (4.77%), respectively.

结论阿给炭挥发油的主要成分为2,4-二树丁基苯酚(4.4%)、十四酸(6.96%)、n-十六酸(7.69%)、-9,12-十八碳二烯酸(6.37%)、软脂酸-2-羟基-1-羟甲基乙酯(4.79%)、硬脂酸-2-羟基-1-羟甲基乙酯(4.77%)。

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这一模式非常关注商人的网络信用基础。

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