固缩的

Lost foam process is one of the most advanced casting crafts, and it can be applied in different materials, sizes castings such as steel ,iron, aluminum castings.High-quality of casting with precise size and smooth-faced; no special requirement for material; reduced trimming work and mechanical processing; Fewer inner flaws, and more compact structure.Environmental-protecting. Working conditions could be improved greatly; at the same time reduced labor intensity and decreased energy consuming could also be achieved.

消失模铸造工艺充分汇集了实型、法铸造工艺的优点为一体适应于钢、铁、铝等各种牌号各种材质不同结构的大、中、小型各类铸件利用干砂固型复制原型原样铸件几何尺寸的精密度高无飞边、毛刺、冷隔均匀一致表面光洁度接近精密铸造铸件内部结构稳定排除了砂眼、气空、缩松等铸造缺陷该工艺充分利用了环保理念且投资少整个生产过程没有污染。

According to the results of IR and XRD, two main mechanisms lead to the formation of cross-linked chitosan microspheres: one was the Schiff base reaction and hydrogen bond formation, the other was the acetalization.

结合IR光谱和XRD测试，分析了壳聚糖交联固化成球的机理：壳聚糖和香草醛之间所发生的Schiff碱反应和氢键的形成以及缩醛化反应，以此为基础共同形成交联结构从而使壳聚糖交联固化成球。

Schiff base derived from p-hydroxybenzaldehyde and p-aminobenzoic acid was prepared by solid-state reaction at supersonic speed airflow and low-heating. Lophophora shape Cu complexes was prepared from the Schiff base and copper acetate and through adding sodium dodecyl sulfate. The structural composition of complexes was confirmed by FTIR and elemental analysis.

利用超音速气流低热固相法合成了对羟基苯甲醛缩对氨基苯甲酸Schiff碱配体，再以该配体和乙酸铜为原料，通过添加十二烷基硫酸钠的方式制备出了晶形规整的仙人球型配合物，利用元素分析和红外等现代测试手段确定了配合物的结构组成。

In this research, two novel compounds in which alkylenedithiomethylene Malonic acid act as the main coordination agents and the compounds containing N atom (such as pyridine, Phenanthroline Ethanediamine and 4,4'-Bipyridinyl) act as the associating coordination agents have been synthesized by the means of solution and solid-liquid diffusing reactions. 9 coordination complexes and polymers have been designed and synthesized in which the transition metals Cu and Zn acted as the centre ions. These compounds have been characterized by X-ray single crystal diffraction analysis, and some properties of them have been tested and analyzed.

本论文设计合成了两种结构新颖的含有二硫缩烯酮结构的丙二酸类化合物，以此为主要配体，以含氮化合物(吡啶、邻菲罗啉、乙二胺和4，4'-联吡啶)为辅助配体，采用常规溶液合成和固-液相扩散等方法，设计合成了9个过渡金属Cu和Zn离子配合物和配位聚合物，采用单晶X-射线衍射等技术对晶体结构表征，并对其部分性质进行了测试和分析。

Objective:To assess the security and effectiveness of the mixture of Suo Quan Gu Niao through trial of acute toxicity,effects of contractile activity of bladder smooth muscle and sphincter urethrae in vitro and clinical research. In order to develop the new traditional chinese medicine to treat Stress Urinary Incontinence on the base of this study .

目的：通过对缩泉固尿合剂的急性毒性试验与对家兔离体膀胱平滑肌和尿道括约肌收缩活动影响的观察及临床预试，初步评价该药的安全性及有效性，为开发治疗压力性尿失禁的中药新药打下坚实的基础。

Trial in vitro made clear that it could remarkably increase the contractile of sphincter urethrae , inhibite the urinary bladder smooth muscle contraction and lower the baseline; when the mixture of Suo Quan Gu Niao was 25mg /ml, it could inhibit the urinary bladder strip contraction induced by KCL,too.

离体实验发现，缩泉固尿合剂在25mg/ml时能显著增强家兔尿道括约肌收缩力，并能抑制膀胱平滑肌的自动节律性收缩，同时可使平滑肌松弛，基础张力降低；对KCL引起的离体膀胱平滑肌的收缩具有一定的抑制作用。

They could be used not only to thesyntheses of amides and esters, but also to the syntheses of oligopeptides andbiologically active peptides, such as Leu-enkephalin, both in solution and the solid-phase.

这类缩合剂不仅可以用于酰胺和酯的合成，而且可以用于固、液相法合成小肽及生物活性肽，例如Leu-脑啡肽的合成。

The length of expansive soils and rocks ditch part of the Mid-line Water transfer from South to North is 340 km, so the disposal technique, analysis methods and the long term stability of ditch slope are the key problems.

膨胀土具有胀缩性、裂隙性、超固结性，其工程性质特殊，即使很缓的边坡也可能失稳，南水北调中线工程膨胀岩土渠段长达340km，渠坡的处理技术、分析方法与长期稳定性是关键问题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。