分子性

According to the construction features of β- cyclodextrin, a comparison analysis is made between fragrance inclusion of BCD and mono - molecules of fragrance.

根据β-环糊精的结构特点，对BCD的香料包给物和香料单体分子进行了对比研究，证明BCD与客体形成的是单分子包结物，该包结物在热稳定性、抗氧化性方面优于客体分子，有相当的实际应用价值。

Phosphoryl oligopeptides having extended construction, increasing molecular flexibility and smaller spatial hindrance could contract the protein configuration in solution, and the contractive protein molecule integrated with the smaller phosphoryl oligopeptide molecules more easily.

分子结构较为伸展、分子柔顺性好、空间位阻较小的磷酰化小肽更容易使蛋白在溶液中的构象趋于收缩，而构象较为收缩的蛋白分子更易结合空间位阻较小的磷酰化小肽分子。

The results indicate that series A have better planarity, longer conjugated bridge and larger βtot value than series B.

结果表明：A类分子的共面性好，共轭链长，β值均比B类分子的大。14个化合物中前线分子轨道能级差越小的化合物，其βtot值越大。

Reporter molecules (thiophenol, bipyridine derivates, cyanopyridine derivates) were attached to different immuno-gold colloids, respectively. By means of the specific adsorption between antigen and antibody, a sandwich structure was constructed, in which labelled immuno-gold colloids and antigen covalently bound to substrate specifically capture different antibodies.

以多种不同的标记分子(苯硫酚，联吡啶类分子，氰基吡啶类分子)分别标记多种不同免疫金溶胶，通过抗体抗原之间所具有的特异吸附性，进一步组装"固相抗体-待测抗原-标记免疫金溶胶"多组分三明治复合体系。

On the base of study on arbuscular endomycorrhiza of Alnus of Changbai Mountain and nitrogen-fixing woods of Northeast of China, the paper attempted to reveal the DNA molecular polymorphism of the symbiotic arbuscular endomycorrhizal fungi for the effect that make better use of the fungi resource.

本项研究利用分子生物学技术和研究方法对中国吉林长白山地区非豆科固氮植物以及东北地区固氮树木的丛枝菌根真菌DNA分子多态性及其与宿主植物之间的相互关系等进行初步研究，旨在利用分子生态学理论和研究方法揭示丛枝菌根真菌多样性及其与宿主植物之间相互适应和协同进化的一般规律，为更好地保护和利用这一重要的微生物资源提供理论依据。

To reseach the mechanisms of ED wtih DM from the acpects of endocrinology, morphology and molecular biology, using rats from NDM and STZ groups as control, the concentration of testosterone, LH and FSH in sera, the microstructure of testicular tissue, bulbocavernous and ischiocavernous muscle tissue, and penile cavernous tissue, the ultrastructure of penile cavernous tissue, and the expression of nNOS mRNA, the content of nNOS and eNOS, the activity of NOS and the concentration of cGMP in the pathway of LARG-NO-cGMP in penile cavernous tissue from ED rats with DM were reseached or examinated in Group A, B and C.

本实验利用第一部分所建立的DM性ED模型，采用NDM及STZ大鼠作对照，通过对A组、B组及C组DM性ED大鼠血清中睾酮、LH及FSH浓度的测定，睾丸组织形态结构的研究从内分泌方面探讨DM性ED的发病机理；通过对阴茎海绵体组织显微及超微结构和球海绵体肌及坐骨耻骨肌显微结构的研究，首次从形态学方面探讨DM性ED的发病机理；通过对阴茎海绵体组织L-ARG-NO-cGMP通路中nNOS mRNA表达、nNOS及eNOS含量、NOS活性及cGMP浓度的检测，从分子生物学方面探讨DM性ED的发病机理。

PP1740 copolymer is a multi phase copolymer,composed of homo-polypropylene,ethylene-propylene rubber,and crystallizable propylene-ethylene copolymer.Homo-polypropylene part offers rigidity and EPR part offers impact strength.The relative ...

研究结果表明，PP1740共聚物由均聚聚丙烯、乙丙橡胶和可结晶的乙丙共聚物组成，具有优良的机械性能；均聚聚丙烯为PP1740共聚物提供刚性，乙丙橡胶可提高PP1740共聚物的抗冲性能；PP1740共聚物的相对分子质量分布呈多分散性，相对分子质量分布较宽；乙丙橡胶的相对分子质量较大，以直径1～2μm球型微粒均匀分布在聚丙烯基体中，有利于提高PP1740共聚物的冲击强度；PP1740共聚物的熔点较高，耐热性好。

YTY paper reinforcement of the recently developed a new water soluble polymer material, it is a high molecular weight polymer compound ionictype, mechanim, numberrepresentationof exesting non－ionic, and numberrepresentationof anions and cations, so this in paper-making process, you can and pulp fiber molecules multi-spots adsorption, which increases the fine celluiose filler and retention; at the same time it can also promote hydrogen between cellulose, and gives the paper jiantiao dry strength significantly increase, because the reinforcement of the unique structure, so it can be used with other paper cocatalyst compouding, a broad pH range as a reinforcement of the paper is available at wood pulp and wood pulp-straw gamasid mixed pulp and paper pulp etc.

YTY纸张补强剂系近期研制成功的新型水溶性高分子材料，它是一种高分子量复合离子型的高聚物，在其分子结构中，既有非离子基团，还有阴离子、阳离子基团，因此这在造纸过程中，可以与纸浆中的纤维分子形成多点吸附，从而提高填料与细纤维素的留着率；同时它还可促进纤维素分子之间的氢健作用，使纸张干强度明显提高，由于该补强剂分子的独特结构，因此它可与其它造纸助剂复配使用，能在较宽广的pH范围内，作为纸张补强剂，可以在木浆、木浆——草浆混合浆、革浆等多种纸浆中使用。

The average percentage of polymorphic bands are 72.06% for ISSR and 66.67% for RAPD respectively. The genetic diversity of ginkgo revealed by ISSR (the average effective number of alleles is 1.8780, the average Nei"s gene diversity is 0.4652, and the average Shannon"s information index is 0.6574) are all higher than those by RAPD (the average effective number of alleles is 1.7842, the average Nei"s gene diversity is 0.4317, and the average Shannon"s information index is 0.6211), while the standard errors of the parameters estimated by ISSR were lower. Therefore, ISSR molecular markers are more suited than RAPD molecular markers when testing the genetic diversity of ginkgo populations and determining the genetic relationship of among populations or among individuals which are much similar hereditarily.

本文应用RAPD和ISSR两种分子标记技术，选取中国5个可能的野生银杏居群共计75个样品，对其遗传多样性进行了研究，得出以下结论：(1)用筛选出的12个RAPD引物和10个ISSR引物进行PCR扩增，分别扩增出65条和68条重复性高、清晰的条带，多态性位点百分率分别66.67%和72.06%，ISSR揭示的银杏遗传多样性(平均有效等位基因数目为1.8780，平均基因多样度为0.4652，平均信息指数为0.6574)高于RAPD所得到的结果(平均有效等位基因数目为1.7842，平均基因多样度为0.4317，平均信息指数为0.6211)，其所估算参数的标准差要低于RAPD所估算出的值，因此，在研究亲缘关系非常近的银杏物种的遗传多样性并试图确定居群间或个体间的遗传关系时，ISSR分子标记技术比RAPD分子标记技术更为合适。

The amphiphiles, 4-8, can not form reverse bilayers in organic solvent, which result in that the molecular interactions unable to meet the need for hydrophile-lypophile balance, so that they crystallize and exhibit no gelling abilities. The mono-chained L-alanine derivatives, 1-3, can self-assemble into bilayer aggregates, through intermolecular hydrogen bonding and homochiral effect in a number of organic liquids, which are juxtaposed and interlocked by van der Waals interaction, and finally gelate the organic liquids.

单链酰基化L-丙胺酸两亲物1-3在一些低极性的有机溶剂可以通过分子间氢键相互作用及同手性聚集作用形成有序的反双分子膜结构，这些有序反双分子膜结构单元依靠vander Waals力相互作用可以平行排列且相互之间进行连结形成长纤维状的聚集体，纤维状聚集体在有机介质中可以进一步相互连结形成三维网状结构，进而胶凝有机溶剂。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。