氯乙酸的
- 与 氯乙酸的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Any of several esters, other than the ethyl ester, of carbamic acid .
氯苯基甲氧基甲基吲哚乙酸是一种非固醇抗炎药物的商标名称。
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A salt or ester of carbamic acid, especially one used as an insecticide.
氯苯基甲氧基甲基吲哚乙酸是一种非固醇抗炎药物的商标名称。
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The result of chemistry show-colour analysis shows ,β―sitosterol extract was soluted in chloroform , and add vitriol , the interface of double liquid layer showed rose colour .β―sitosterol extract was soluted in acetic acid and add three chloridize iron--acetic acid—vitriol solution , it showed blue , then became pansy .
显色反应的结果显示,β―谷甾醇提取物于氯仿和浓硫酸反应后呈现玫瑰红色,与三氯化铁-乙酸-浓硫酸溶液反应后呈现蓝色,再变为紫罗兰色。
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Firstly, we studied the photocatalytic hydrogen evolution and decomposition of the pollutants over Pt/TiO_2 in the presence of chloroacetic acids.
首先,我们研究了氯代乙酸存在下Pt/TiO_2上光催化生成氢的反应。
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Firstly, 3-ethylthiobutanal was prepared from crotonaldehyde reacting with ethanehiol in triethylamine with high yield. Secondly, methyl acetoacetate was converted to 6-ethylthiohept-3-en-2-one by three steps via hydrolysis, condensation with 3-ethyltio-butanal and dehydration, then 6-ethylthiohept-3-en-2-one was cycloco ndensed with dimethyl malonate by Michael addition and Claisen condensation, followed by saponification and decarboxylation to give the intermediate of 5-(2-ethylthiopropyl)-cyclohexane-1,3-dione.
首先,以巴豆醛与乙硫醇为原料,在三乙胺的催化作用下高收率制得3-乙硫基丁醛;然后从乙酰乙酸甲酯出发,通过碱水解、与3-乙硫基丁醛缩合、脱水三步反应合成6-乙硫基-3-烯-2-庚酮,接着6-乙硫基-3-烯-2-庚酮与丙二酸二甲酯通过Michael加成和Claisen缩合成环,再通过皂化和脱羧反应生成中间体5-[2-丙基]-1,3-环己二酮;再与丙酸酐反应丙酰化,最后与0-3-氯-2-丙烯基羟胺肟化,得到目标化合物烯草酮。
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The hypha growth-inhibiting method and the virulence determination method were used to investigate the inhibition effects of the petroleum ether fraction, chloroform fraction, ethyl acetate fraction, n-butanol fraction and water fraction in the alcoholic extracts from the aboveground of Peganum harmala L.
采用抑制菌丝生长法和毒力测定法,研究了骆驼蓬地上部醇提物的石油醚、氯仿、乙酸乙酯、正丁醇和水5个极性部位对南瓜枯萎病菌、西瓜枯萎病菌Fusarium oxysporum f。
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Results There were about 15 kinds of chemical poisons including vinyl chloride,polyvinyl alcohol,isoparaffin,polyvinylacetate,sodium hydrate,ammonia,acid hydroc,methanol,diesel oil,carbon monoxide,carbon dioxide,sulfur dioxide,nitrogen oxides,ozo...
结果在聚氯乙烯的生产过程中,作业场所存在化学毒物较多,主要包括氯乙烯、聚氯乙烯、聚乙烯醇、过氧化物、异链烷烃类、聚乙烯乙酸酯、氢氧化钠、氨、盐酸、甲醇、柴油、一氧化碳、二氧化碳、二氧化硫、氮氧化物、臭氧、二氧化锰等。
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Rats in the experimental group received conventional fixation, and then decalcified with modified decalcifying fluid [10 mL of methanoic acid, 8 mL of concentrated hydrochloric acid (1.19 relative density, 3 g of aluminum chloride, 20 mL of formaldehyde (0.4 volume fraction), 3 mL of glacial acetic acid, adding to 200 mL with saline solution], dehydrated, transparentized with chloroform, and then embedded for a long time, dyed, mounted and made into tissue sections.
实验组经过常规固定,而后应用改良脱钙液(甲酸10 mL、浓盐酸(相对密度1.19)8 mL、氯化铝3 g、体积分数为0.4的甲醛20 mL、冰乙酸3 mL,加生理盐水至总体积200 mL)脱钙、脱水、氯仿透明、包埋时间延长、染色、封固和切片;对照组进行常规固定、脱钙、脱水、透明、包埋、染色、封固和切片。
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NAA, CPPU and EBR all induced parthenocarpic growth together with active cell division and enhanced transcripts of cell cycle-related genes.
奈乙酸,N-(2-氯-4-吡啶基)-N-苯基脲和表油菜素内酯都能诱导黄瓜单性结实,加快细胞分裂和提高细胞周期相关基因的表达。
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An ester or a salt of perchloric acid .Indocin is the trade name of this nonsteroidal anti-inflammatory drug.
氯苯基甲氧基甲基吲哚乙酸是一种非固醇抗炎药物的商标名称。
- 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