无结构的

The results show that all the hmgr genes from pigs, cattle and chickens are astable enzyme proteins with the same gene sequence characteristics and encoding protein and physical and chemical properties; all the amino acid sequences have a high degree of homology, containing two conservative HMG-CoA binding motifs and two NADPH binding motifs; all the amino acid sequences, containing signal peptide, are secreted proteins; they are all hydrophobic transmembrane proteins with five transmembrane domains; random coil and α-helix are the main structural elements in the HMGR polypeptide chain; all the predictions of three-dimensional structure are V- shaped; there are more closer evolution relationship between the HMGR gene from pigs and cattle.

结果表明：猪、牛和鸡HMGR基因序列特点及编码蛋白质理化性质基本相同，均属不稳定类酶蛋白；保守结构域氨基酸序列具有高度的同源性，均含有保守的2个β-羟基-β-甲基戊二酸单酰辅酶A结合基序和2个还原性烟酰胺腺嘌呤二核苷酸结合基序；均有信号肽，属分泌型蛋白质；属于跨膜的疏水性蛋白，均有5个跨膜结构域；无规则卷曲和α-螺旋是HMGR多肽链中的主要结构元件；三维结构预测都呈"V"字形；猪和牛HMGR基因的进化关系最近。

Target compounds have been synthesized by condensation of the aromatic nucleus and amino heterocylcle with acyl isocyanates or acylisothiocyanates in absolutely anhydrous and aprotic solvent.

为了寻找高活性的农药品种，利用生物等排原理和亚结构连接法，对脲类化合物的母体结构进行了修饰，将芳氧羧酸类及吡唑环引入酰基脲母体结构中，利用酰基异氰酸酯与杂芳环胺类化合物在无水非质子溶剂中发生亲核加成反应，合成了四个系列21种新的酰基脲类目标化合物。

According to the analytic result of eletric field, winding end insulating structure is improved and short cushion-block and non oil-gap structure is put forward in the region where electric field is centralized.

根据电场分析的结果，针对场强集中，存在绝缘隐患的部位，改进了绕组端部绝缘结构，提出了短垫块结构、无油隙结构。

The main results and conclusions are as follows:The trans-1,4 content of polybutadiene increased from 50%to 89%along with the increasing of Al/Li ratio;the trans-1,4 content of polyisoprene increased from 24%to 46%as well as 3,4 content along with the increasing of Al/Li ratio;the microstructure of polystyrene was invariable and atactic.

主要研究结果及结论如下：随着Al/Li的增加，聚丁二烯的反式结构含量从50%增加到89%；聚异戊二烯的反式-1，4-结构含量从24%增加到46%，并且其3，4结构含量也有所增加；聚苯乙烯的微观结构基本没有变化，为无规聚苯乙烯。

The main results and conclusions are as follows:The trans-1,4 content of polybutadiene increased from 50%to 89%along with the increasing of Al/Li ratio;the trans-1,4 content of polyisoprene increased from 24%to 46%as well as 3,4 content along with the increasing of Al/Li ratio;the microstructure of polystyrene was invariable and atactic.

加热器主要研究结果及结论如下：随着Al/L i的增加，聚丁二烯的反式结构含量从50%增加到89%；聚异戊二烯的反式-1，4-结构含量从24%增加到46%，并且其3，4结构含量也有所增加；聚苯乙烯的微观结构基本没有变化，为无规聚苯乙烯。

We defined a piece of muscle, a single intermuscular space, a piece of bone or subcutaneous tissues as a tissue unit.

软组织无肿胀时为0度；肿胀局限于病变紧邻的结构单位内，即紧邻的肌肉、肌间隙或皮下组织者为Ⅰ度；肿胀累及2个结构单位者为Ⅱ度；累及2个结构单位远侧组织者为Ⅲ度。

The root system in the cortex of the host stem has a few branches and highly simplified stele of original triarch vascular bundles. The haustrium root system, which is from the root system in the cortex of a host stem enters the vascular tissues as finger-like body from the vascular rays and then to become hyphae-like body among the vascular cells.

皮层根有少数分枝，无次生结构，中柱结构高度简化，从胚根的结构可看出其初生木质部原先是三原型的；吸器根从皮层根上发生，进入寄主维管射线中，再进入维管组织内，并形成许多丝状体。

The analysis results of FTIR , SEM, X-ray Diffraction and TG-DSC proved that,the existence of graft copolymerization between cassava starch and acrylamide was occured;the structures of cassava were destroyed during the copolymerizing; the structures of the copolymer were largely amorphous; within the range of 700℃,the thermal degradation process of the St-g-PAM was divided into three-steps, which was more complex than that of cassava.

FTIR、SEM、X射线衍射、TG-DSC分析结果表明木薯淀粉与丙烯酰胺已发生接枝共聚反应；木薯淀粉在接枝共聚反应中，结构被破坏，接枝共聚物的结构基本上为无定型结构；在700℃温度范围内，木薯淀粉丙烯酰胺接枝共聚物的热降解为三步降解历程，比木薯淀粉复杂。

In this paper, as a typical lewis acid, anhydrous aluminum (AlCl_3) was used as the catalyst to get PP/PS blends compatibilized by in-situ Fridel-Crafts alkylation. The effects on PP and PS components of AlCl_3 were investigated first, mainly by rheology, including steady rheology method and dynamic rheology method. Then the in-situ reactions in PP/PS alloys under different conditions were executed and studied in detail by selective Soxhlet solvent extraction. And at the same time, the evolutions of phase structures of PP/PS and the resulted PP/PS/AlCl_3 alloys were investigated by SEM and SALS. The steady and dynamic rheological behaviors of in-situ compatibilized PP/PS alloys were obtained systematically.

本文选用典型路易斯酸无水氯化铝(AlCl_3)作为催化剂，利用烷基化反应机理，对PP/PS合金直接进行原位催化反应增容，以流变学方法(包括静态流变和动态流变学方法)为主，详细探讨无水AlCl_3对PP/PS合金体系中PP和PS两组分的影响，并在此基础上进一步系统研究无水AlCl_3原位催化增容PP/PS合金的相结构演变及增容反应特征，然后对不同原位催化增容条件下获得增容合金材料的流变行为特征作了深入探讨。

In order to make these silver paste successfully used in commercial, a clear understanding is required for the complex relation between different parameters such as particles size, solid volume fraction, packing density on suspension printing and deformation and the mechanism of silver powder sintering shrinkage and the inorganic adhesive effect under the batch manufacture condition.The main emphasis of our researches was to improve the silver paste properties by developing a reliable, screen-printing paste suitable for fine lines and lower sintering porosity and good interface between thick film and glass substrate.

为开发电学性能稳定、高导电率、具有良好细线印刷性能及优良附着性的高性能电子浆料，本研究着眼于对影响参数进行详细剖析，找到关键控制参数，通过研究微观结构与粉末参数的对应关系，找到如何能制备出具有致密的厚膜结构与较低的孔隙率，并且其浆体与有机载体的界面区也要有明显的改善的电子浆体；同时对批量生产的银粉的形态与粉末烧结反应的收缩现象，无铅玻璃体系对银膜致密化等过程进行研究，获得致密高导的无铅银浆料。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷