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  • 生物脂质来源于酮脂酰和异戊二烯基团。

    Biological lipids originate from ketoacyl and isoprene groups.

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  • 对相转移催化合成2-戊叉环戊酮及其异构化的条件进行了研究。

    The synthetic conditions of 2-pentylidene cyclopentenone using PTC were stud-ied, and the conditions of isomerization were also studied.

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  • 戊抑素(2毫克/千克)与虫草素(2毫克/千克)的组合对感染伊凡斯的小鼠100%有效。

    Pentostatin (2 mg/kg) in combination with cordycepin (2 mg/kg) is 100% effective in the T. evansi-infected mice.

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  • 这些石油副产品之一便是异戊二烯。

    One of these petroleum by-products is isoprene.

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  • 异戊二烯也可以通过人工聚合来制造合成橡胶。

    Isoprene can also be artificially polymerised to make synthetic rubber.

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  • 而异戊二烯必须极其纯净才能生产出合成橡胶。

    Isoprene needs to be extremely pure to make synthetic rubber.

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  • 氯化发生在异戊二烯单元附近形成烯丙基氯。

    Chlorination occurs adjacent to the isoprene units to form allylic chlorines.

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  • 方法:运用戊四唑点燃法,复制癫痫大鼠模型。

    Methods: PTZ kindling was used to duplicate the epileptic rat model.

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  • 英国传教士李提摩太积极参与“丁戊奇荒”赈灾。

    British missionary Timothy Richard took an active part in the relief during Ding-wu Disaster.

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  • 目的:探讨老年戊型病毒性肝炎(戊肝)的临床特点。

    Objective:To study clinical features of hepatitis E in elderly people.

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  • 采用催化反应精馏技术,研究了合成乙酸异戊酯的新工艺。

    The new process of synthesis iso-amyl acetate by catalytic reaction rectification was studied.

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  • 大牛:哎,都说这司母戊大方鼎是目前世界上出土最重的青铜器。

    Well, this huge square bronze cauldron is said to be the heaviest bronze object ever unearthed in the world.

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  • 图1。有代表性的单萜烯类。显示了异戊二烯单元的一般结构特点。

    Figure 1. Representative monoterpenes. Isoprene units are shown to indicate the common structural features.

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  • 引起病人的溶血性贫血的病因被依次推断为癌症,狼疮和戊型肝炎。

    Various reasons for the patient to have hemolytic anemia were considered, including cancer, lupus and hepatitis E.

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  • 目的比较盐酸戊乙奎醚和阿托品用作口腔手术患者术前药的临床效果。

    Objective To compare the clinical effect of penehyclidine to atropine as premedication in oral and maxillofacial surgical patients.

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  • 剩余的异戊二烯则用以生产其它产品,包括胶水,纸尿裤和医用乳胶手套。

    The rest goes into making other products, including glues, disposable nappies and surgical gloves.

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  • 商朝以来传统鼎的形制中,只有方鼎为平底,如商代著名的司母戊大方鼎。

    Of all the traditional cauldrons (ding) since the Shang Dynasty, only rectangular cauldrons, such as the famous Simuwu tetrapod of the Shang Dynasty, have flat bottoms.

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  • 树木分泌的天然化学物质异戊二烯和萜烯被认为可保护树叶免受过多热量和阳光的伤害。

    Trees produce natural chemicals, called isoprene and terpene, that are thought to protect their leaves from too much heat and sunlight.

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  • 司母戊鼎在铸造工艺和艺术水平上,都代表了商代青铜铸造技术的最高成就。

    The Simuwu Rectangle Ding reveals a high level of casting technique and artistry. It represents the highest casting achievement of the Shang Dynasty.

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  • 这些改良的大肠杆菌发酵生物质中所含的糖类以生合成异戊二烯,并以气体形式释放出来。

    The modified organism ferments sugars in the biomass to produce isoprene, in such a way that it bubbles out as a gas.

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  • 二氧化双环戊二烯难于被胺或单独的酸酐所固化,但能很好的被酸酐与醇所固化。

    Dicyclopentadiene dioxide was hardly cured by amines or acid anhydrides alone, but can be well cured by acid anhydrides mixed with alcohols.

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  • 探讨了双环戊二烯改性不饱和聚酯树脂的各种影响因素及其合成的主要工艺条件。

    The various influencing factors and main synthesis processes of dicyclopentadiene modified unsaturated polyester resin are investigated.

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  • 今天我们发现了一种制造更“绿色”轮胎的方法,即通过利用基因改良的细菌来生物合成异戊二烯。

    Now a way has been found to make greener tyres by using genetically modified bugs to produce isoprene biologically.

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  • 以辛醇和从二羧酸中分离出的戊二酸为原料,硫酸为催化剂,酯化合成了戊二酸二辛酯。

    The dioctyl glutaricate was prepared by esterification of octyl alcohol and glutaric acid separated from dicarboxylic acid in catalysis of sulfuric acid.

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  • 以辛醇和从二羧酸中分离出的戊二酸为原料,硫酸为催化剂,酯化合成了戊二酸二辛酯。

    The dioctyl glutaricate was prepared by esterification of octyl alcohol and glutaric acid separated from dicarboxylic acid in catalysis of sulfuric acid.

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