单键

According to the differences of the structures between monosaccharide and disaccharide, the relations between the characteristic spectra of disaccharides and their collective vibrational modes originated from the inter- and intra-molecules are discussed.

通过分析单糖与二糖之间分子结构的差异，讨论了二糖的THz特征吸收谱和由其分子间氢键和分子内氢键共同作用的集体振动模式之间的关系。

As in disaccharides, these units are held together by glycoside linkages, which can be broken by hydrolysis.

例如二糖中的单糖单元通过糖苷键连接，这种键会经水解而断裂。

The monosaccharides in LBP-4 identified by GC were xylose , galactose , mannose , Rhamnose , glucose and arabinose with the molar ratio of 4. 45: 1. 20: 1. 0: 0.98: 0.90: 0.85. The content of calcium, magnesium, zinc and iron in LBP-4a were 127. 9070mg·g〓, 32. 3953mg·g〓, 0.3845mg·g〓 and 0.2930mg·g〓, respectively. The content of galacturnic acid in LBP-4a was 55. 45% while the content of protein is 3. 80%. According to IR spectra, it contains -COOH group,-NH- roup,-OH group,-NH〓 group and β-D-glucose. The backbone of sugar residues chain in LBP-4a were contained 1→6 indican bond according to periodate oxidation and the results of β-elimination reaction indicated that the chain of polysaccharides and protein were connected by O-linked chemical bond. The photograph of LBP-4a got by laser scanning confocal microscope and scanning electron microscope showed that the LBP-4a combined both with each other and with itself in its crystalloid. The crystalloid was flake and anisotropic.

由LBP-4a的红外光谱图知：LBP-4a中含有-COOH、-OH和-NH〓或-NH-基团，糖链中含有β-D-吡喃葡萄糖；高碘酸氧化实验知LBP-4a糖链中不具有连二羟基和连三羟基结构的单糖残基：具有连二羟基结构的单糖残基：具有连三羟基结构的单糖残基=57.0：16.2：1，六碳糖残基的连接中含有1→6连接的糖苷键；通过β消去反应证明LBP-4a中多糖链和氨基酸间为-O-型连接；由激光扫描共聚焦显微镜和扫描电镜对LBP-4a结晶观察结果推测：LBP-4a结晶中同时存在分子间和分子内结合的现象，LBP-4a分子相互结合时，并不是无规则的相互缠绕形成无规线团结构，而是形成片层结构，并且LBP-4a结晶可能具有各向异性的性质。

The main products include: Apollo piano 32-key and 37-key melodica the series of single-tone, multiple-tone, echo, and chromatic scale mouth organs, the series of 6-hole and 8-hole recorders, high-quality tools for piano adjustment and repairs, electronic calibrators, metronomes, etc.

主要产品有阿波罗系列钢琴、32键、37键口风琴、单音、重音、回声、半音阶等系列口琴、六孔、八孔系列竖笛、高级钢琴调修工具、电子校音器、节拍器等。常年开展教学培训、乐器竞赛等活动，2002年独家协办了全国首届口风琴大赛。

By the numeric keypad slash key "click" to select the object then, in accordance with the key can also display the properties of the selected projects.

按数字键盘的斜线键"单击"选中对象以后，按该键也可显示选中项目的属性。

Nanoparticle of an appropriate proportion were homogeneously dispersed in the PI matrix, and the interfacial adhesion between the matrix and the nanoparticle was hence strong owing to the high specific surface area and reactivity of the nanoparticle. Subsequently, the molecular chains of PI attained unchanged or even increased interaction at a proper mass fraction of the nanometer particle, which contributed to improve the wear-resistance of the nanocomposites.

采用PI的原位聚合填充方法，利用聚酰亚胺与无机纳米表面较强的相互作用（如静电作用、较强的范德华力、氢键甚至化学键的形成），用非水悬浮工艺制备了无机纳米/聚酰亚胺纳米复合材料，率先用大型分析仪器全面地表征了复合材料的结构，采用原位聚合填充法制备的聚酰亚胺复合材料中，无机纳米分散状态良好；无机纳米氧化物/聚酰亚胺复合材料的结构表征显示出PI有机相和SiO〓无机相之间形成了键联型复合体系，两相相互影响；在复合体系中，单相本体的结晶结构并未发生改变；在摩擦过程中纳米氧化物没有发生价态的转变；无机纳米氧化物的加入，提高了聚酰亚胺的耐热等级；适量纳米氧化物并不影响复合材料的机械性能， 2。

Then, we check Find all matches and click Find (shortcut key Alt+F).

然后，我们检查查找所有比赛，单击查找（快捷键ALT + F键）。

The results indicated that GLP was a linear (1→3)β-D-Glcp main chain linkage. Its monosaccharide component was predominantly composed of D-Glc, and small amount of galactose, mannose, xylose and idose, residues of branches terminated with substituted at 1→6 by a small number of singleunit β-D-Glcp side-chains, it's also observed that the (1→3)-linked β-D-glucan contained a triple-helical conformation, which was composed of a repeating unit with a structure as below:.

结果表明：灵芝多糖含有三螺旋体构型，GC-MS分析灵芝多糖的主要单糖组分为葡萄糖，还有少量的半乳糖、甘露糖、木糖和艾杜糖，IR及1HNMR分析多糖为β-构型，HIO4氧化、Smith降解和甲基化分析表明：多糖主要为(1→3)糖苷键连接构型，并伴有少量的1→6位支链键连接的结构，灵芝多糖是由D-葡萄糖单元通过β-(1→3)糖苷键连接葡聚多糖，其主要构型特征为(1→3)β-D-线性连接的骨架结构。

n thes paper, the oligomers with different molecular weight of monohydroxylpolyethersulfones were synthesized in solution and the optimum condition ofpolymerization was obtained; With phase transfer catalyst method,the oligomerswas obtained and transformed to monovinylpolyethersulfones macromer. Its structure was characterized with IR and 1H-NMR.

本文采用溶液法以单酚（4－氯－4'－羟基二苯砜）为原料合成了不同聚合度的单酚低聚体，得到了控制聚合度的最佳聚合条件；用相转移催化剂法成功地将单酚转化为单烯大分子单体，并用IR、1H—NMR对其结构进行了表征；测定了双键官能度均在1.90以上。

I also thought that the beginning of the phenomenon of the failure was due to display card driver caused the destruction, so I right-click the desktop system, the "My Computer" icon on the shortcut menu from the pop-up the implementation of "property "command, open the System Properties settings window, click the window of the" hardware "tab, and in the corresponding tab page, click" Device Manager "button, open the device list window, use the mouse to start the window "Show card" option, and then double-click the mouse "standard VGA graphics adapter" project, open the corresponding project page the driver tab, click the tab page in the "Uninstall" button to display the current card driver procedure removed, and then restart the computer system, then let the system automatically re-installed the graphics card driver.

开始阶段笔者还以为该故障现象是由于显示卡驱动程序遭到破坏引起的，于是笔者用鼠标右键单击系统桌面中的&我的电脑&图标，从弹出的快捷菜单中执行&属性&命令，打开系统的属性设置窗口，单击该窗口中的&硬件&标签，并在对应的标签页面中单击&设备管理器&按钮，打开系统的设备列表窗口，用鼠标展开该窗口中的&显示卡&选项，再用鼠标双击&标准 VGA 图形适配器&项目，打开对应项目的驱动程序标签页面，单击该标签页面中的&卸载&按钮，来将当前的显示卡驱动程序删除掉，之后将计算机系统重新启动了一下，同时让系统自动重新安装了显示卡驱动程序。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。