二二二
- 与 二二二 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Well, it's seven mornings a pint at twopence is seven twos is a shilling and twopence over and these three mornings a quart at fourpence is three quart s is a shilling and one and two is two and two, sir
"喏,一品脱[74]是两便士喽七个早晨二七就合一先令[75]二便士喽还有这三个早晨每夸脱合四个便士三夸脱就是一个先令喽一个先令加一先令二就是二先令二,先生。"
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In this paper,two dihydrazides were synthesized with hydrazine and diethy1 ester.
本文利用了戊二酸二乙酯在一定反应条件下合成戊二酰二肼。
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The syntheses and spectral characteristics of bism-methylbenzene maleate and bis-m-methylbenzene phthalate is reported in this paper.
报道了顺丁烯二酸二间甲苯酯和邻苯二甲酸二间甲苯酯的合成与光谱性质。
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II. construction scale: annual treatment capacity of 15 thousand tons castor seeds to extract 7 thousand tons oil, annual yield of 7 thousand tons methyl ricinoleate, 2 thousand tons nylon 11 and 3.5 thousand tons castor oil fatty alcohol; along with the following by-products: 1.4 thousand tons medicinal glycerol, and 5 thousand tons of heptaldehyde alcohol, mono-octyl sebacate and dibutyl sebacate respectively.
二、项目建设规模:年处理l.5万吨蓖麻籽、榨油0.7万吨、年产蓖麻酸甲酯0.7万吨、0.2万吨尼龙11和0.35万吨蓖麻油脂肪醇;副产品药用甘油0.14万吨、庚醛醇、癸二酸辛酯和癸二酸二丁酯各0.5万吨。
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The results indicated that CHCl3 was optimum reagent and the reaction temperature was better controlled at 10~15℃. Dinitrogen tetraoxide and nitric acidhad a detrimental effect on the yield and purity of 1,2-propanediol dinitrate. When the concentrations of dinitrogen tetroxide and nitric acid were below 1.00% and 5.53% respectively, these detrimental effects could be neglected. Under the optimum conditions, the yields and the purity of 1,2-propanediol dinitrate were 99.01% and 95.89%, respectively.
同时考察了反应溶剂、反应温度、N_2O_5中N_2O_4和HNO_3杂质对1,2-丙二醇二硝酸酯收率和纯度的影响,结果表明,适宜的溶剂是CHCl3;适宜的反应温度为10~15℃;在适宜条件下,1,2-丙二醇二硝酸酯的收率和纯度可分别达到99.01%和95.89%;N_2O_4和HNO_3对产物的收率和纯度均有不利影响,但当N_2O_5中N_2O_4含量小于1.00%,HNO_3含量小于5.53%时,对产物收率和纯度的影响不大。
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Sodium 2-Acrylarnido-Acetate has been synthesized through the reaction of Aminoacetic acid with acryloyl chlorine, then Copolymer of sodium 2-acrylamido-acetate and dimethyl diallyl ammonium chloride with acrylamide had been prepared by free radical polymerization using (NH4)2S2O8 and NaHSO3 as the free radical initiator in water solution.
本论文首先以氨基乙酸和丙烯酰氯为原料制备丙烯酰胺基乙酸钠单体,然后以丙烯院胺丙烯酰胺基乙酸钠和二甲基二烯丙基氯化铵为单体,(NH4)2S2O8和NaHSO3为自由基引发剂,采用水溶液聚合法合成丙烯酰胺/丙烯既胺基乙酸钠/二甲基二烯丙基氯化铵共聚物。
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Polyimide/nano carborundum composite films were made from pyromellitic dianhydride、4, 4'-aminodiphenyl ether、N, N'-dimethyl acetamide and nanometer carborundum.
以均苯四甲酸二酐、4,4'-二氨基二苯醚、N,N'-二甲基乙酰胺为原料,经化学合成反应制备了聚酰亚胺/纳米碳化硅复合薄膜。
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Water,propylene glycol,butylene glycol,glyceryl polymethacrylate,ascorbic acid,peg-7 glyceryl cocoate,biosaccharide gum-1,peg-40 hydrogenated castor oil,ppg-26-buteth-26,phenoxyethanol,hydroxyethylcellulose,xanthan gum,methylparaben,pentadecalactone,citrus aurantium dulcisoil,disodium edta,sorbic acid,tocopheryl acetate,butylparaben,retinyl palmitate,iris germanica root extract,sodium hyaluronate,ethylparaben,propylparaben,citrus aurantium amara oil,limonene,linalool
水,丙二醇,丁二醇,甘油聚甲基丙烯酸酯,维生素C衍生物,PEG-7 椰子油酸单甘酯,多醣物质,PEG-40氢化蓖麻油,PPG-26-丁醇聚醚-26,苯氧乙醇,羟乙基纤维素,山羊胶,羟苯甲酯,环十五内酯,甜橙油,乙酸乙二胺二钠,山梨酸,醋酸盐维他命E,羟苯丁酯,维他命A酯,鸢尾花根萃取,透明质酸钠,羟苯乙酯,羟苯丙酯,苦橙油,柠檬精油,芳樟醇
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First,from molecular aspect,a novel copolymer-PPBES has successfully been synthesized by nucelophilic substitution reaction with biphenol,4-(4-hydroxyphenyl)-phthlazin-1(2H)-one and 4,4\'-dichlorodiphenylsulfone,which has both twisted and linear molecular structures in the backbone.
本文从分子设计出发,首先选用联苯二酚与4-(4-羟基苯基)-2,3-二氮杂萘-1-酮和4,4′-二氯二苯砜为共聚单体,采用溶液亲核取代逐步缩聚合方法,合成了一系列含有杂萘联苯结构和联苯结构的新型共聚芳醚砜。
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Poly with sulfonic acid groups were readily synthesized with biphenol and 1,3-bis(4-fluorobenzoyl)benzene in the presence of excess potassium carbonate followed by sulfonation with chlorosulfonic acid.
以二氯二苯甲烷和2,6-二甲基苯酚为原料合成了含有阻碍基团的双酚单体,用此双酚单体和1,3-二(4-氟苯甲酰基苯)在无水碳酸钾存在的条件下反应制得聚芳醚酮,然后用氯磺酸磺化,控制反应条件,使磺酸基团恰好进入苯环对位,制得新型结构的磺化聚芳醚酮。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。