结构体

The secondary structure of 5.8S rRNA and ITS2 of Usnea was investigated and a secondary structure model for this group of lichens was proposed.

本研究以松萝属为研究对象，构建了该属核糖体5.8S和第二转录区间（ITS2）的二级结构模型，并对种间的结构差异进行了比较。

Incline rock-beam"the structure is always goes against after the working surface above main roof snaps forms along inclines the direction three-pinned arch, manifested "Voussoir beam" the structure basic characteristic, its scope was upward expansion "the balance - lost unceasingly steadily - balances again - loses again steadily the dynamic process.

倾斜岩梁"结构是由工作面上方的老顶破断后形成的沿倾斜方向的三铰拱，体现了"砌体梁"结构的基本特征，其范围是不断向上扩展的一个"平衡—失稳—再平衡—再失稳的动态过程。

As an illustration of the difficulty, it may be mentioned that two German chemists, Heinrich Wieland and Adolph Windaus, were awarded Nobel Prizes in 1927 and 1928, partly for determining the structures of a few steroids, and these structures were later shown to be wrong!

做为其难度的一个例证，或许可以提到两个德国化学家，Heinrich Wieland和Adolph Windaus，他们获得了1927年和1928年的诺贝尔奖，部分原因就是测定了一些甾体的结构，而这些结构后来被证明是错误的！

The phase structure of zirconia is important for many catalytic reactions and materials.

氧化锆的晶相结构对其在催化反应中的活性以及作为材料的性能有着决定性的作用，氧化锆体相晶相结构的研究已有很多文献报道，但针对其表面。。。

In the second part, the structure of agglutinin from Abrus precatorius has been determined by X-ray crystallography. The structure and the activity as a ribosome-inactivating protein have been compared with abrin-a from Abrus precatorius.

第二部份是以X光结晶学的方法，决定鸡母珠凝集素(Agglutinin from Abrus precatorius)的单晶结构，描述其与鸡母珠毒素(Abrin-a from Abrus precatorius)结构上的差异，并试图由此分析两者作为醣体抑制蛋白在活性上的差异。

Most conidia penetrate host cuticle with germ tubes in acanthoid surface topography and spinous surface topography of host while a few conidia does so with appressorium.

在嵴状突起结构区和刺状突起结构区，多数孢子萌发后产生芽管，直接以芽管侵入幼虫体壁，少数形成附着胞侵染寄主。

In hypothalamic median eminance of kidney Yang deficiency group, the bounds of ependymocytes were dim, distribution of their microvillus changed, the top of microvillus enlarged and became spherical, and holes occurred on the surface of the cells. In that of control group, the cell arranged in order and the cell bouns were clear, the microvillus were equal in thickness and in long, thin acerose thread wool shape. The surface ultrastructure of ependymocytes on hypothalamic median eminance in herb group was similar to that of control group.

肾阳虚大鼠垂体内分泌细胞和甲状腺细胞存在着不同程度的粗面内质网、高尔基体扩张，线粒体空化，细胞变形，核固缩等超微结构的损伤；中药组大鼠垂体超微结构与正常组类似，细胞形态完整，结构清晰，细胞器结构正常，含有各种大小不等、形态不一的分泌颗粒，但甲状腺细胞超微结构与肾阳虚组相比未见明显改善。

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。

The effects of flurocarbon surfactant,silane coupling agent, epoxy acrylate prepolymer and alumium silicate fine powder on the water resistant of acrylate structural adhesives were studied.

研究了氟碳表面活性剂、硅烷偶联剂、环氧丙烯酸酯预聚体以及硅酸铝粉末对丙烯酸酯结构胶耐水性的影响，制备出一种耐水性能优异的丙烯酸酯结构胶，其常温拉伸剪切强度为24。

Grew on the normal temperature, it was shown that the deposits of calcium antimonate being the indicator for Ca(superscript 2+) localization mainly concentrated within the vacuoles and intercellular spaces and there was also some Ca(superscript 2+) deposits in cell walls. But when Garyota urens L. was treated by the temperature of 2℃ for 48 h, the level of Ca(superscript 2+) increased in cytoplasm and plasma membrane, but decreased in vacuoles and intercellular spaces considerably. At the same time, the ultrastructure of chloroplasts suffered from chilling: the membrane of chloroplasts had been damaged, the layer of thylakoids was exiguous and unclear, the photosynthetic rate decreased evidently. And when Garyota urens L. was treated by the temperature of 2℃ for 120 h, the deposits of Ca(superscript 2+) mainly concentrated within the cytoplasm, nucleus and plasma membrane and there was also some Ca(superscript 2+) deposits in vacuoles, and the ultrastructure of some cells was simultaneously damaged severely: Chloroplasts structure, vacuole membrane and nuclear membrane had been damaged fully, the structure within the cell had become unclear, and the cell only have respiration.

研究结果表明，未经低温处理的董棕幼苗叶肉细胞，焦锑酸钙沉淀颗粒大量出现在液泡和细胞间隙中，细胞壁中也可见少量沉淀，而细胞基质中则看不到焦锑酸钙沉淀；经2℃ 48 h低温处理后，细胞基质和细胞膜上焦锑酸钙沉淀增加，而液泡和细胞间隙中的焦锑酸钙沉淀则显著减少，并且超微结构已初步显示出寒害的特徵，叶绿体外膜部分破损，类囊体片层稀疏且排列不规则，光合速率明显下降等；经2℃ 120 h低温处理后，细胞间隙内的焦锑酸钙沉淀极少，有的也紧贴在细胞外壁上，而细胞基质和细胞膜上则分布有非常多的焦锑酸钙沉淀，在核基质和液泡中也可见到少量的焦锑酸钙沉淀，并且超微结构遭到了显著破坏，叶绿体结构完全被破坏，核膜与液泡膜严重破损，内部结构模糊，细胞只表现为呼吸作用，不进行光合作用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。