• 条路线是先使噻吩已酰化制得噻吩。

    The scheme initially involves acylation of thiophene using a carboxylic acid to afford the acyl thiophene.

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  • 增产处理溶于油、水处理化学添加剂

    A chemical additive for stimulation treatments that is soluble in oil, water and acid-based treatment fluids.

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  • 模拟结果表明方向释放可能是烯二炔环发色团分子最佳释放路径

    Further, calculated forces and time by FPMD (force-probe molecular dynamics) suggest that the opening of the naphthoate moiety should be the most favorable pathway.

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  • 乙醇第一分章至第七有机化合物所构成的,应按有关酸基化合物归类。

    Esters of ethyl alcohol with acid-function organic compounds of sub-Chapters I to VII are to be classified in the same heading as the corresponding acid-function compounds.

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  • 质子性芳香族树脂使用树脂的离子传导性高分子粘合剂以及燃料电池

    Crosslinkable aromatic resin having protonic acid group, and ion conductive polymer membrane, binder and fuel cell using the resin.

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  • 自然人工合成包括个或二个以上通过一个氨一个的结合而成。

    Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid and the amino group of another.

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  • 本文丙烯F - 44环氧树脂原料,合成了一种含有环氧又含有丙烯酸基光敏酚醛环氧丙烯酯树脂。

    The title photosensitive phenolic epoxy acrylate resin has been prepared based on acrylic acid and F-44 epoxy resin as basic materials, which contains epoxy as well as acrylic groups.

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  • 所制成新型齐聚具有高密度官能团,产品经过阻垢、预膜、缓蚀测定后,认为可作为水处理的阻垢缓蚀剂。

    Phosphorus acid is added, so as to make it phosphonated. The new oligomer has high density branched chain of phosphonic acid functional groups. This product has undergone tests such ass…

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  • 丙烯酸基相比,(联)绕丹宁酸基作为电子受体更降低染料LUMO能级,从而使得激发态染料分子的电子注入驱动力变弱。

    Compared to cyanoacrylic acid group, the(co) rhodanine acetic can also shift LUMO of dye positively and reduce the force of electron injection into conduction band of TiO2.

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  • ”牌味道很浓,外皮很好

    The Key lime pie was bursting with flavour. Good crust, too.

    《柯林斯英汉双解大词典》

  • 目的合成2-5直链烷功能的5-氟尿嘧啶衍生物

    The objective is to synthesize 5-fluorouracil derivatives containing 2-5 carbon alkanoic acid.

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  • 合成了非天然34噻唑DL丙氨及其四个中间体

    Nonnatural amino acid 3 (4 thiazolyl) D, L alanine hydrochloride and its four intermediates were synthesized.

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  • 如今研究人员创造胶囊通过丙烯正丁酯愈合功效化合物悬浮其中的油类混合而制的。

    The capsules the researchers have come up with are made by mixing butylcyanoacrylate, a chemical found in superglue, with an oil carrying the healing compounds.

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  • 所有三个码同特定相吻合中的顺序,同氨蛋白质中的顺序一致。

    All but three of the codons correspond to particular amino acids, and the order of the codons in the nucleic acid corresponds to the order of the amino acids in the protein.

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  • 在密尔沃市郊杂货店购物AhnaDeverey,面对添加了DHA /omega-3脂肪牛奶摇摇头

    Ahna Deverey, shopping at a grocery store in suburban Milwaukee, shook her head at milk with added DHA/omega-3 fatty acid.

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  • 知道,我是学习化学反应吧

    I don't even know. I think acid and base chemical reactions.

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  • 梅干含有丰富绿可以起到抵抗自由作用自由导致细胞机构损坏所以经常食用梅干防止癌症发生

    Wrong contains rich chlorogenic acid, can rise to resist free radical role, and free radicals can lead to cell damage, so often eat institutions wrong can prevent the occurrence of cancer.

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  • 甘油:甘油酯或者一种或几种脂肪

    An ester of glycerol and one or more fatty acids.

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  • 首席研究员戴维-:“煤炭或者最黑丙烯颜料反射小——这成为迄今为止发现最暗行星。”

    "Being less reflective than coal or even the blackest acrylic paint-this makes it by far the darkest planet ever discovered," lead study author David Kipping said.

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  • 李子干含有的大量新绿原绿原是对付过氧化阴离子自由特别有效氧化剂。

    Dried plums contain high amounts of neochlorogenic and chlorogenic acids, antioxidants that are particularly effective in combating the " superoxide anion radical".

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  • 甘油:甘油酯或者几种脂肪

    Acylglycerol (glyceride) an ester of glycerol and one or more fatty acids.

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  • 每个微滴周围包裹着薄薄的丙烯正丁酯

    Each droplet has an oil core surrounded by a thin layer of butyl cyanoacrylate.

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  • 采用环氧树脂树脂、树脂研制成耐煮沸防腐烘干清漆介绍了制备工艺讨论了影响性能因素

    Epoxy resin amino resin alkyd resin are adopted to get endure boiled anticorrosive stoving varnish introducing it's produce process discussing reason of affect it's performance.

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  • 普鲁兰有机无机盐普鲁兰氨常规条件下反应获得

    The organic or inorganic acid salts of pullulan aminoalkyl ether can be prepared by reacting pullulan aminoalkyl ether obtained as above with acids in a conventional manner.

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  • 超选微导管置入撕裂血管近端损伤血管残端缓注入N-2-丙烯NBCA

    N-butyl 2- cyanoacrylate (NBCA) is gently deposited proximally to the arterial tear or at the level of the stump of the traumatized artery after superselective microcatheterization.

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  • 合成铕-水杨-邻菲咯配合物水性丙烯酯共聚物

    The complex of Europium with sulfosalicylic acid and phenanthroline asas waterborne - polymer of acrylate has been synthesized.

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  • 丙烯酯粘合剂如误入眼部粘附于眼部蛋白质之上,而后通常小时之内陆续脱落。

    Cyanoacrylate introduced into the eyes will attach it self to the eye protein and well disassociate form it over intermittent periods, generally covering several hours.

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  • 例如无机自然界本身就是就是说存在在于对方相联系

    Thus, in inorganic nature, the acid is implicitly at the same time the base: in other words, its only being consists in its relation to its other.

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  • 目的探讨微波加热法处理聚甲丙烯甲酯(pmma)托材料力学性能

    Objective: To study the mechanical properties of microwave cured polymethylmethacrylate (PMMA) denture base resins.

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  • 目的探讨微波加热法处理聚甲丙烯甲酯(pmma)托材料力学性能

    Objective: To study the mechanical properties of microwave cured polymethylmethacrylate (PMMA) denture base resins.

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