查询词典 sulphuric acid

Firstly, XRD, TEM and FT-IR were used to characterize the structure of CNTs treated by dense HC1, dense HNO_3, HNO_3, H_2SO_4-HNO_3, K_2Cr_2O_7-H_2SO_4 and bromic acid. The results showed that purification treatment had no change on the structure of CNTs. But on the top of CNTs have function group such as -OH and -COOH after H_2SO_4-HNO_3 and K_2Cr_2O_7-H_2SO_4 were treated.

采用浓HCl、浓HNO_3、H_2SO_4-HNO_3、K_2Cr_2O_7-H_2SO_4、溴水共5组物质分别对CNTs进行纯化处理；借助XRD、TEM、FT-IR等分析手段对处理前后CNTs结构及形貌进行表征，发现以上5种物质纯化处理并不会对CNTs结构造成很大影响，其中H_2SO_4-HNO_3和K_2Cr_2O_7-H_2SO_4处理效果较好，除杂的同时CNTs端口带上-OH或-COOH活性官能团。

The starting material substituted cyclohexyl benzoic acid was prepared from substituted phenyl ethanones by bromoform reactions...

起始原料取代的环己基苯甲酸由取代的苯乙酮经溴仿反应得到。

The main contents are:(1) The polarized laser Raman spectra of acetone, methyl alcohol, alcohol, ethylene glycol, formamide, acetonitrile, acetic acid, Chloroform, Methylene chloride, and Bromoform are measured in the experiment.(2) The depolarization ratio of Raman shift in the measured spectrum are

主要的结果有：得到了丙酮分子9条喇曼谱线、甲醇分子5条喇曼谱线、乙醇分子9条喇曼谱线、乙二醇分子7条喇曼谱线、甲酰胺分子8条喇曼谱线、乙腈分子8条喇曼谱线、乙酸分子8条喇曼谱线

210 Mao Xi random cent is bronchitic little patient remedial group and contrast group, remedial group 100, contrast group 110, two groups all give disease-resistant poison, smooth asthma, when sucking acid of oxygen, composed, correct, amalgamative infection, add wait for comprehensive treatment with antibiotic.

方法将210例毛细支气管炎患儿随机分为治疗组和对照组，治疗组100例，对照组110例，两组均给予抗病毒、平喘、吸氧、镇静、纠酸、合并感染时加用抗生素等综合治疗。

The multiple alignment of R2, R3 amino acid repeat regions of MYB genes among broomcorn millet, rice, corn, loblolly pine, Arabidopsis, capsicum, upland cotton, barley and aubergine indicates that R2, R3 repeat regions are very conserved.

对其与水稻、玉米、火炬松、拟南芥、辣椒、陆地棉、大麦及茄子等9种植物的 MYB 基因的R2、R3重复区的氨基酸序列多重比较，表明R2R3重复序列在植物中具有较高的保守性；基于氨基酸序列的编码区系统进化树分析表明，不同植物的MYB基因遗传分化很大，序列相似性为32%~84%，其中糜子 MYB 基因与水稻的 MYB18相似程度最高(84%)，与大麦和玉米的相似性分别为46%和41%。

A method for analysis ofγ-aminobutyric acid in germinated brown rice by high performance liquid chromatography was developed.

建立一种发芽糙米中γ-氨基丁酸含量的高效液相色谱测定法。

But, there was little difference for the resistance to brown rot. 4 The decay resistance of ACQ and CuAz were close to CCA, and obviously superior than organic acid preservative.

通过对比，ACQ和铜唑类防腐剂的抗菌性与CCA相当，明显优于有机酸类防腐剂。

The analgesic effect of brucine was studied by Usage of ache model caused by acetic acid in mice.

采用醋酸扭体法，分3次给药，每次间隔10min，末次给药30min后腹腔注射0.6%的醋酸，观察小鼠25min内的扭体数。

Here is the acid bubble bath tank that comes with the kit.

这里是酸的泡沫浴坦克附带的工具包。

On a pressure of about 10 E-1 mbar and a substrate temperature below the liquidus of the solder, formic acid will be feed into the vacuum chamber from a bubbler using nitrogen as a tracer gas.

气压大约在10 E-1 mbar，基板温度低于焊料液相温度时，将甲酸充入真空腔体中（甲酸用作tracer gas？）。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。