三键

Main component of composition of the negative type photoresistive agent is polyimide, which possesses pendent -COOH. Reaction between partial carboxylic acid group and monomer with glycidyl acrylate generates bond junction. Rudimental other part of carboxylic acid group and additional additive component with third amino group and monomer of C=C double bond forms ionic bond junction.

本发明的负型光阻剂组合物的一主要成份为聚亚酰胺其具有悬垂的-COOH且部分的羧酸基与带有环氧基团的丙烯酸酯单体glycidyl(methacrylate反应形成键结，而残留的另一部分羧酸基与另外添加的成份带有第三胺基及C＝C双键的单体形成离子键结。

In the crystal structure of the title compound,the independent p-hydroxybenzoic acid and hexamethylenetetramine molecules are arranged alternately and constructed the three-dimensional hydrogen-b.

在标题化合物的晶体结构中独立的对羟基苯甲酸分子和六次甲基四胺分子组交错排列，借助多种氢键形式形成三维氢键网络结构，其中弱氢键扮演着重要的角色

Hold down these three keys at the same time places can be shut down your computer to switch to the window, press the Enter key to close the current project together with the ALT key CTRL key on the numeric keypad coupled with its key point is the Hot Start Conversion button.

同时按住这三个键位可以切换到关闭计算机的窗口，按回车键即可关闭当前项目 CTRL 键加上 ALT 键再加上数字键盘的点号键是热起动转换按钮。

In complex 1,Cucan be described as a four-coordinated square planar geometry.Compound 8 is the sodium salt of plumbagin and exists as ionic compound.Compounds 9-16 are the rare earth complexes of plumbagin with La,Y,Dy,Sm,Gd,Nd,Erand Eu.Compound 17 is binuclear Y complex.18 is mononuclear Ycomplex with plumbagin and another ligand from Plumbago Zeylanica.Compounds 19-21 are the ternary complexes with plumbagin and 2,2\'-bpy and phen as assistant ligand.In 19, the geometry of Cucan be described as five-coordinated distorted square pyramid that exists in a dimer through the weak bonding,and 1-D chain structure is formed by intermolecular hydrogen bonds.

化合物1的单晶结构分析表明1具有四配位平面四边形结构，化合物8是白花丹素的Na盐，以离子化合物形式存在；化合物9～16为白花丹素的La，Y，Dy，Sm，Gd，Nd，Er，Eu的稀土金属配合物；化合物17是白花丹素的双核钇结构；化合物18为白花丹素的单核钇结构，该配合物除了含白花丹素外，还有来自白花丹植物中的另一个单体化合物也参与配位；化合物19～21是以2，2\'-联吡啶和邻菲咯啉等含N配体为辅助配体，具有白花丹素—含N配体—金属离子的三元配合物，化合物19是白花丹素和2，2\'-联吡啶与Cu的配合物，具有五配位的四方锥构型，通过Cu…O弱的成键作用形成二聚体，再通过分子间的氢键作用进一步形成一维链状结构，化合物20和化合物21是白花丹素分别与2，2\'-联吡啶和邻菲咯啉的Zn配合物，都具有六配位八面体构型的双核锌配合物，呈一维链状结构，化合物20中链与链之间的大量氢键将一维链扩展成二维层，分子间的π-π堆积作用进一步形成三维结构。

749Mg/ml and 0.778u/ml, respectively. 5. Study on the viscosity changes of reaction solution and analysis of enzymatic hydrolysis products by TLC, HPLC showed that ChiB was an endo-type cleavage enzyme. It decreased viscosity of reaction solution, hydrolyzed β-(1, 4) glucosidic bond of chitosan, acted on GlcN-GlcN, GlcN-GlcNAc and/or GlcNAc-GlcN glucosidic bond. It did not act on GlcNAc-GlcNAc glucosidic bond. Hydrolysis products of chitosan were composed of chitotriose, chitotetraose and chitopentose.

通过测定酶解液体系粘度和对酶解产物的TLC、HPLC分析，在国内首次深入地研究并报道了内切、外切壳聚糖酶的酶解作用模式，结果表明：酶ChiB是一种内切酶，以内切方式水解壳聚糖的β-（1，4）糖苷键，即作用于GlcN-GlcN、GlcN-GlcNAc和／或GlcNAc-GlcN糖苷键，不能作用于GlcNAc-GlcNAc糖苷键；酶解终产物以壳三糖、壳四糖、壳五糖为主。

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。

Three dimensional hydrogen bonding in hard segment domains can be formed by further bonding of the above planar hydrogen bondings.

认为这些平面氢键可以通过进一步键合来形成硬段微区中的三维氢键。

But after 1,2-insertion, the γ-agostic complex can be isomerized to only one β-agostic complex.

能量量低的插入路径是烷基链在N对位是的1，2-插入。2，1-插入路径中的γ-氢桥键烷基配合物能异构化得三个β-氢桥键的烷基配合物，空间位阻最小的最稳定。1，2-插往前只生成一个β-氢桥键烷基配合物。

The bandwidth using correspondence letter way for the sake of better land utilization also make signal can transmission larger of distance, in the numeral carry the wave the correspondence, we adoption three kinds of solution adjust a way: Move key to control Pin to move key to control with mutually move key to control.

为了更好地利用通信信道的带宽并使信号能够传送更大的距离，在数字载波通信中，我们采用了三种解调方式：幅移键控频移键控和相移键控。

In the framework of effective field theory, we have calculated the relation of Curie temperature and crystal field and discussed system's critical and related magnetic properties in the system of three-dimensional cubic lattice in the presence of bond dilution and random crystal field.

系统的居里温度随着晶场的增加而单调递减并且在相图中出现了三临界点，而键稀疏对三临界点有着明显的抑制作用，当键稀疏浓度降低到阈值pc 的时候系统将出现诱导磁有序，此时晶场浓度无论如何取值，该系统在一定的晶场范围内 0 ≤？

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了