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The acetated and hydrogenated urushiol dimer has been separated,and studied by hetero-J resolved 2D-NMR,homo- and heteronuclearchemical shift correlation 2D-NMR and long-range coupled chemicalshift correlation 2D-NMR.The results show that the urushiol dimerare most diphenyl and alkyl phenyl ether structures.Furthermore,IR and MS data also has conformed this structures.

本文将酶催化预聚后的生漆，催化加氢后，乙酰酯化，再进行离心旋转薄层层析，分离得到二聚体主要组分，用异核J分辨谱，同核化学位移相关，异核化学位移相关，远程偶合异核化学位移相关等2D—NMR技术，全面研究了其结构，得到了联苯型和烷基芳醚型聚合结构的结论。

After the diazotization ,2-aminophenol-4-(2-'carboxy)sulfanil phenylamine was coupled with acetoacetanilide,2-naphthol,1-phenyl-3-methyl-5-pyrazolone,1-naphthol-4-sulfonic acid,separately to get the different diazotized compounds,then complexed with potassium chromium sulfate or cobaltous chloride to obtain the yellow,orange,red,purple,blue and other colour dyestuffs.

2-氨基苯酚-4-(2'-羧基)磺酰苯胺重氮化，分别与乙酰乙酰苯胺、2—萘酚、1-苯基-3-甲基-5-吡唑啉酮、尼文酸、1-乙酰氨基-7-萘酚等偶合，得到不同的偶氮化合物，然后分别与硫酸铬或氯化钴进行络合反应，得到黄、橙、红、紫、蓝多种颜色染料，并进行了毛织品的染色实验。

Objective To determine whether autoantibodies against the cardiac G-protein-coupledβ 2 -andα 1 -adrenergic and AT 1 receptors are related to patients with primary hypertension.

目的探讨抗G-蛋白偶联型β2、α1及AT1受体的自身抗体在原发性高血压病程中的分布情况。

The aeromechanical stability for the coupled rotor/fuselage system of helicopters in forward flight is investigated.

研究了前飞状态下直升机旋翼/机身耦合系统的气动/机械稳定性问题。

The alkaloids were studied by gas chromatography coupled to mass spectrometry. Six major venom alkaloids were detected in worker venom which are all trans 2-methyl-6-alkyl or alkenyl pepdine according to mass spectral data and relative report on S.invicta.

通过保留时间和质谱离子碎片数据，并与国外相关报道比较分析得出：入红火蚁毒液中主要成分为2-甲基-6-烷基或烯基哌啶生物碱，仅有6位取代烃基碳链长短和烯键有无及顺反异构的差异。

In the work, microwave distillation coupled with headspace solid-phase microextraction was developed for the rapid determination of essential oils in Alpinia oxyphylla Miq.fruits and Houttuynia cordata Thunb.

天然植物精油是调味品、药物和天然香料的重要来源，对其挥发性成分的研究在食品、日用品、化妆品、制药和烟草等行业有着重要的意义和作用。

Where larger sizes are required, multiple dampers sections are coupled together to operate in unison.Extended shaft for motorised drives, felt edge blades, damper position indicator and multi-modular units with alterate modules shut or open for use as mixing zone dampers.

在需要更大的尺寸时，可将多个风量调节器耦联，共同安装于延长驱动轴上，可感到叶片边缘和风量调节器位置指示器的作用，并借助可调节多模块单元的开、闭路作用，控制混合区域风量调节器的节气效果。

The glutaraldehyde was coupled with amido group of chitosan, and template protein-bovine hemoglobin was immobilized by aldehyde group.

用壳聚糖包裹的硅胶为载体，利用壳聚糖表面的氨基与戊二醛结合，在硅胶表面引入醛基，固定模板蛋白。

We isolate the LCA binding glycosylated proteins from anosia human liver cell extraction and liver cancer cell extraction by LCA coupled epoxy magnetic particles, and the glycosylated fractions were separated by 2D gels which were analyzed by 2D ImageMaster to established disparity expression spectra between Chang Liver and SMMC-7721 firstly.

利用该方法对健康人肝脏细胞Chang Liver总蛋白、肝癌细胞SMMC-7721总蛋白及健康人血清进行了糖蛋白的分离纯化，结合2D电泳技术及其图像分析，建立了健康人肝脏细胞ChangLiver和肝癌细胞SMMS-7721 LCA结合糖蛋白的差异表达谱，分别得到蛋白质点148±5和209±7个，匹配点数为127，匹配率为85.36%。

Third, introducing the evaluation theory of ecosystem service, it set up an appraisable system of ecosystem service values of water resources, which is specially carried on to Haihe Basin too. Fourth, it coupled the evaluation theory of ecological service function and the holistic analysis model of water resources carrying capacity for a try, and then set up the analysis mechanism of regional macro-economy, water resources and ecological environment, which carried on a preliminary research of carrying capacity of ecological environment of water resources in Haihe Basin.

第二，建立了水资源承载能力分析模型，针对海河流域进行专门的分析，提出流域合理的经济社会发展规划参考目标，第三，引入生态系统服务功能价值理论，建立了水资源生态系统服务功能价值评价体系，并在海河流域内进行实践应用，第四，将生态服务功能价值理念与水资源承载能力分析模型进行尝试性的耦合，初步提出基于区域宏观经济、水资源及生态环境分析机制的流域的水资源生态环境承载能力分析框架。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐