产物
- 与 产物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The effects of various reaction conditions were studied by GC analysis. Reaction time has slight effect on the conversion of acenaphthene. The selectivity of N-phenyl aminoacenaphthene increases with reaction time. Biacenaphthenyls or N-phenyl aminoacenaphthene is in the majority, 77.6% or 90.2% when the molar ratio of AlCl3 to acenaphthene is 1.2 and 2.4 respectively.
GC考察了不同反应条件对苊转化率和产物选择性的影响,时间对苊转化率影响不大,N-苯基氨基苊的选择性随着时间增加而增大;随着AlCl3用量的增加,苊转化率和N-苯基氨基苊的选择性随之增加;AlCl3与苊的摩尔比为1.2和2.4时,产物中联苊和N-苯基氨基苊的选择性分别达到77.6%和90.2%。
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HPLC was coupled with both mass spectroscopy and ultraviolet absorption spectroscopy for simultaneous separation and characterization of the products from glow plasma reaction of chloroform.(3) Phosphorus pentachloride has been used to perchlorinate acenaphthene under moderate pressure and temperature in sealed reaction vessels.
在此基础上,以反相C〓柱为固定相,甲醇/乙醇/环己烷为流动相,采用梯度洗脱的方法,对氯仿辉光放电合成产物进行高效液相色谱-紫外光谱-质谱联用分离分析,成功的分离得到包括富勒烯C〓和全氯代碳簇在内的数十种产物,并得到了相应的质谱和光谱数据。
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It was found that the products are mixture of Michael-adduct and acetal.
发现在适量甲醇存在时,其超临界反应产物是Michael加成产物和缩醛。
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Propylene oxide, propionaldehyde, acrolein and acetone are one of the most important chemical feedstocks.
近二十多年来,国内外研究者一直致力于流程简单、副产物少和无污染的生产C_3氧化产物的绿色催化工艺的研究。
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Intellectual property is aeriform money property right, like visible wealth property right, it is the child that the mankind works, and be the child of specific history phase.
知识产权是无形财产权,与有形财产权一样,它是人类劳动的产物,并且是特定历史阶段的产物。
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Therefrom; heating said waste edible oil from which solid materials have been removed to a predetermined temperature, thereby removing moisture and materials of odor contained in the waste edible oil therefrom by evaporation; dissolving in alcohol a catalyst containing at least one type or more types of alkaline material selected from a group comprised of at least potassium hydroxide, potassium carbonate and potassium alcoholate, thereby preparing an alcoholic solution containing the catalyst; mixing said waste edible oil from which said solid materials, moisture and materials of odor have been removed with said alcoholic solution containing the catalyst and stirring the waste edible oil and alcoholic solution, thereby accelerating a catalytic reaction between the waste edible oil and the alcohol and obtaining a reaction product between the waste edible oil and the alcohol; separating said reaction product into a light solution and a heavy solution; mixing the light solution obtained in the separation step with a solid absorbent, thereby impurities such as residual catalyst, odor material, moisture contained in the light solution being absorbed by the solid absorbent; and separating and removing said solid absorbent from a mixture of the solid absorbent having absorbed the impurities and the light solution.
完成前述对象,根据这项发明的特点是获得的柴油燃油从废油脂透过几个步骤:去除固体材料包含在一个废油脂倾倒,从餐厅,食品厂,民政等因此;暖气说,废油脂从哪个固体材料已被调离到一个预定的温度,从而消除了水分和材料的气味,载于废油脂因此由蒸发;溶解在酒精的催化剂至少含有一种或更多类型的碱性材料选定由一组组成的至少氢氧化钾,碳酸钾和钾,醇,从而准备一醇溶液中含有催化剂;混合说,废油脂从哪个说,固体材料,含水率和材料的气味已被剔除与说,酒精性解决方案载有催化剂和搅拌废物食用油及含酒精的解决办法,从而加速催化反应之间的废油脂及酒精和获得反应产物之间的废油脂及酒精;分开说,反应产物成为一个轻型的解决方案和沉重的解决方案;混合轻解决方案,获得了在分离一步一个坚实的吸水性,从而杂质,如残留的催化剂,气味的物质,水分,载于轻解决方案,被吸收的固体吸收剂;分离和消除说,固体吸附剂从混合物对固体吸收剂吸收了杂质和轻便的解决办法。
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The results show that WO_3 can be nitrided in the mixture gas of hydrogen and nitrogen, and ...
结果表明,WO3可以在氢氮混合气中被还原氮化;氮化反应分两段进行;在氢氮体积比(4~5)∶1,反应温度650℃的条件下,WO3可以被还原为产物W2N;在不同氢氮比的混合气中氮化,WO3会生成不同的中间产物WO2和WOXNY,中间产物WOXNY进一步氮化生成W2N要比WO2容易;助剂Ni的加入使氮化反应温度降低了100℃;载体γ-Al2O3的加入使金属氧化物的氮化过程变为一步氮化还原反应。
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The nature products have great varieties in molecular structures and may have been found some new leading compounds that have new effect mechanism. Nearly 50% of the well-sold drugs at present are from nature products or related with the nature products.
天然产物蕴含着巨大的分子多样性,有可能发现与现有化合物作用机理完全不同的新的先导化合物母体,目前销售良好的药品有约50%来自天然产物或与天然产物相关。
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Sterilization in desinfection chamber and subcultures of collections ;②confection of fermentation media and sterilization technics;③influences to objective produce altering the fermentable conditions ,including the examinations of the parameters about remnant sugar、pH、growth of microorganisms and produce;④separations and distillations of objective produces in fermented broth,the distillation technics of filter press and ion exchange;⑤brief and operation techniques of automatic fermentation tank.
课程内容:本课程主要实验内容:①微生物无菌室灭菌及种子扩大培养技术;②微生物发酵培养基及配制及灭菌技术;③微生物发酵及发酵条件的改变对目的产物代谢的影响,包括菌体生长、pH、残糖和产物等发酵过程中各项参数的检测;④发酵液中目的产物的分离及提纯,板框压滤离子交换提取技术;⑤自动发酵罐的简介及操作技术。
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The basic concept is combining metabolic pathways in different organisms on a genetic level. As a consequence heterologous organisms provide precursors from their own primary and secondary metabolism that are metabolised to the desired secondary product due to the expression of foreign genes.
组合生物合成是得到新颖天然产物的一种新型工具,并且可以用于生产稀有珍贵的天然产物,其基本概念是在基因水平上将不同有机体的代谢途径结合起来,从而使异源性生物通过外源基因的表达代谢出期望的次生代谢产物,然后从它们的主要代谢和次生代谢中得到想要的前体。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力