查询词典 sulphuric acid

To obtain sulphuric acid, Cyrus Harding had only one operation to make,to calcine the sulphate of iron crystals in a closed vase, so that thesulphuric acid should distil in vapor, which vapor, by condensation, wouldproduce the acid.

赛勒斯·史密斯制造硫酸的最后一道工序，是把硫酸铁的结晶密封在瓶子里，进行锻烧，使之蒸发为水汽，经过冷却，就可以变成硫酸了。

This year the company operating the various organic chemical raw materials, varieties are: methanol, ethanol, ethylene glycol, butanol, isobutanol, isopropanol, glacial acetic acid, vinyl acetate, B lipid, Ding acetic acid lipid, styrene, toluene, phthalic anhydride, xylene, acetone, butanone, cyclohexanone, DMF, sulphuric acid, methyl isobutyl ketone, glycol Dingmi, three toluene, 2 Xin fat, melamine.

本公司常年经营各种有机化工原料，品种有：甲醇、乙醇、乙二醇、正丁醇、异丁醇、异丙醇、冰醋酸、醋酸乙烯、醋酸乙脂、醋酸丁脂、苯乙烯、甲苯、苯酐、二甲苯、丙酮、丁酮、环己酮、DMF、硫酸、甲基异丁基酮、乙二醇丁醚、三甲苯、二辛脂、三聚氰胺。

The toxicity of caprylic acid,capric acid and lauric acid toanaerobic granular sludge as well as the influence of capric acid on toxicity of caprylic acid and lauric acid were studied in batch assays.

采用间歇培养实验研究了辛酸、癸酸和月桂酸等三种长链脂肪酸对UASB反应器厌氧颗粒污泥产甲烷活性的毒性，以及癸酸对辛酸和月桂酸抑制作用的影响。

Water,c12-20 acid peg-8 ester,caprylic/capric triglyceride,proplylene glycol,ppg-15 stearyl ether,chondrus crispus,iris germanica(orris extract/cells),centaurea cyanus,macadamia ternifolia,buxus chinensis,triethanolamine,potassium cetyl phosphate,butyrospermum parkii,c12-13 alkyl lactate,carbomer,phenoxyethanol,methylparaben,imidazolidinyl urea,glyceryl hydroxystearin,tocopheryl acetate.retinyl palmitate,sodium hyaluronate,biosaccharide gum-1,propylparaben,disodium edta,ethylparaben,pentadecalactone,hydroxystearic acid,tetradecyloctadecanoic acid,tetradecyleicosanoic acid,hexadecyleicosanoic acid,butylparaben,isobutylparaben,chlorhexidine digluconate,tocopherol,lecithin,ascorbyl palmitate,glyceryl stearate,glyceryl oleate,BHT,citric acid.

水，C12-20 酸 PEG-8酯，辛酸/癸酸三酸甘油酯，丙二醇，PPG-15 硬脂基醚，卡拉胶萃取，德国鸢尾花提取物/细胞，矢车菊提取物，澳洲坚果油，荷荷巴油，三乙醇胺，十六烷基磷酸钾，牛油果，c12-13烷醇乳酸酯，卡波姆，苯氧乙醇，羟苯甲酯，尿素醛，甘油羟基硬脂酸酯，醋酸盐维他命E，维他命A酯，透明质酸钠，多醣物质，羟苯丙酯，乙酸乙二胺二钠，羟苯乙酯，环十五内酯，羟基硬脂酸，十四烷基十八烷酸，十四烷基二十烷酸，十六烷基二十烷酸，羟苯丁酯，对羟基苯甲酸异丁酯，洗必泰葡萄糖酸盐，维生素E，卵磷脂，抗坏血酸棕榈酸酯，甘油硬脂酸，甘油油酸酯，BHT，柠檬酸。水：几乎所有护肤品成分第一位都是水。辛酸/癸酸三酸甘油酯：润滑剂、扩散剂，棕榈油/椰子油衍生物

The method involves exposing the cells to a compound having the formula I in which: w is a nucleic acid x is a non-amino acid or non-peptide nucleic acid binding group y is a spacer having a chain length equivalent to 1-30 carbon-carbon single covalent bonds or is absent R4 is H or halogen or CH2O-R3; and R1, R2 and R3 are the same or different and are either hydrogen, methyl, ethyl, alkyl, alkenyl, hydroxylated alkyl, hydroxylated alkenyl groups or ether containing alkyl, alkenyl, hydroxylated alkyl or hydroxylated alkenyl groups optionally being an acyl group having a carbon chain length equivalent to 3-24 carbon atoms saturated or unsaturated, with the proviso that at least one of R1, R2 or R3 includes a group having a carbon chain of 3-24 carbon atoms saturated or unsaturated, or to a compound having the formula II in which: w is a nucleic acid x is a non-amino acid or non-peptide nucleic acid binding group y is a space having a chain length equivalent to 1-30 carbon-carbon single covalent bonds or is absent, R5 is alkyl, alkenyl, hydroxylated alkyl, hydroxylated alkenyl group or ether containing alkyl, alkenyl, hydroxylated alkyl or hydroxylated alkenyl group optionally being an acyl group having a carbon chain length equivalent to 3-24 carbon atoms saturated or unsaturated, with the proviso that R5 includes a group having a carbon chain of 3-24 carbon atoms saturated or unsaturated.

该方法包括使细胞暴露于具有式的化合物，在式中：w是核酸，x是非氨基酸或者非肽核酸结合基团，y是具有等于1―30个碳―碳单共价键的链长的间隔基或者不存在，R4是H或者卤素或者CH2O－R3；R1、R2和R3是相同的或者不同的并且是氢、甲基、乙基、烷基、链烯基、羟基化烷基、羟基化链烯基或者包含烷基、链烯基、羟基化烷基或羟基化链烯基的醚，任选地是来源于具有等于3―24个碳原子的碳链长的饱和或不饱和脂肪酸的酰基，其条件是R1、R2或者R3的至少一个包括具有3―24个碳原子的饱和或不饱和碳链的基团，或者使细胞暴露于具有式的化合物，在式中：w是核酸，x是非氨基酸或者非肽核酸结合基团，y是具有等于1―30个碳―碳单共价键的链长的间隔基或者不存在，R5是烷基、链烯基、羟基化烷基、羟基化链烯基或者包含烷基、链烯基、羟基化烷基或羟基化链烯基的醚，任选地是具有等于3―24个碳原子的饱和或不饱和碳链的链长的酰基，其条件是R5包括具有3―24个碳原子的饱和或不饱和碳链的基团。

This paper gives some commensurable researches utilizing experiment combining theory. The whole paper consists of the theoretical and experimental researches. The first part consists of the fundamental study of foamed acid, the flowage of foamed acid as a Non-Newton fluid in the pipe and annular pipe, and the technology of acidification using foamed acid; and the experimental study includes the formula experiment of foamed acid, the Rheological behavior of foamed acid, the seepage and divided flow in the corn of foam, and appraisal experiment of foamed acid.

本论文采用实验和理论结合的方法，开展了相应的研究工作，主要包括两大部分内容：一是理论研究，包括泡沫酸的基本性质、泡沫酸流体作为可压缩非牛顿流体在井筒和环空中的流动规律、以及泡沫酸酸化工艺等方面的理论研究；二是实验研究，包括泡沫酸的稳定性配方、泡沫酸的流变特性、泡沫流体渗流规律和暂堵分流特性、泡沫酸室内评价等室内实验。

The preparation of polymer is required for high purity of glycolic acid, if not, low-weight polymer is obtained, therefore, high purity glycolic acid is scarce in the market. So, the research for the synthesis of glycolic acid is essential. In domestic and overseas, there are many methods for preparation of glycolic acid, including glycin oxidation, cyanogenesis, aldehyde oxidation, coupling of maldehyde and methyl formate, oxalic acid electrolysis, chloroactic acid hydrolysis and so on.

制备羟基乙酸的聚合物时，对羟基乙酸单体的纯度要求较高，否则得到的聚合物分子量较低，导致高纯度羟基乙酸的需求量逐年增长，目前在国内，高纯度的羟基乙酸还没有形成工业化规模生产，对羟基乙酸的合成进行研究是非常有意义的。

With more than 1800 employees, 180 million total assets and 250 thousand square meter industrial area, now we have already developed three subsidiaries: Biochemical Company, Cyder Company and Wine Company; the main products including itaconic acid, itaconic anhydride, dimethyl itaconate, L-Threnonine, L-Tartaric Acid, Kojic Acid, Kojic Acid Dipalmitate, Hyaluronic Acid, Phytic Acid, Cider, Mineral water, Apple vinegar and high-grade grain spirits, etc.

我公司生产历史悠久，技术力量雄厚，现有职工1800余人，厂区面积25万平方米，下属生化公司，苹果酒公司，白酒公司，主要产品有衣康酸、衣康酸酐、衣康酸二甲酯、苏氨酸、酒石酸、苹果酒、苹果醋、琅琊台系列白酒等。

Objective: Uric acid is a kind of end product of purine metabolism extrinsic source and endogenous, it's dissolvability and degree of saturation in the blood is limited, the maximum degree of saturation is 416μmol/L, crystal will emerge when surpass this density. About 25% of uric acid excrete through digestive canal, the rest through kidney, the condition of it's egestion through kidney roughly as follows:(1) Almost 100% of the blood uric acid is filtered through the glomcrulus;(2)98%～100% of the uric acid which is filtered will be reabsorb in the proximate nephric tubule;(3) The nephric tubule initiatively secrete uric acid to the lumens of nephric tubule;(4) Part of the secreted uric acid will be reabsorbed to the blood around the nephric tubule.

目的：尿酸是人体内外源性和内源性嘌呤代谢的最终产物，尿酸在血中溶解饱和度有限，最大溶解饱和度为416μmol/L，超过此浓度即会出现结晶，沉积下来。

The acidic composition can be prepared by mixing a monovalent or polyvalent cation and an organic acid in the presence of a strong oxyacid, wherein the resultant acidic composition is less corrosive to a ferrous metal than a solution of a mineral acid having the same acidic pH value as that of the acidic composition, and where in the acid composition is more biocidal than a mixture of the organic acid and a metal salt of the organic acid which mixture has the same acid normality value as that of the acidic composition.

所述酸性组合物可以在一种强羟基酸存在时，通过混合单价或多价阳离子和有机酸来制备，其中与具有相同的酸性pH值的无机酸溶液相比，所形成的酸性组合物对含铁金属的腐蚀性更小，并且与具有相同酸当量值的有机酸与有机酸金属盐的混合物相比，所述的酸组合物具有更强的杀生物作用。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48