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This thesis mainly study the properties of entanglement in some one-dimension Heisenberg chains.

这篇毕业论文主要研究一些一维Heisenberg链的纠缠性质。

This thesis mainly studies the operator entanglement in heisenberg chains and the entanglement properties of dirac electronic state.

这篇毕业论文主要研究了海森堡链中的算符纠缠与狄拉克电子态的纠缠性质。

The total RNA was extracted from spleen of Xiphophorus helleri which had been immunized for two weeks. The core sequence was amplified by RT-PCR. The cDNA end sequences were amplified by RACE, and then the full-length cDNA of sIgM heavy chains gene were obtained by putting all of them. The full-length sequence contains the immunoglobulin signature sequence: FKCIANH.

以免疫两周的剑尾鱼为材料，提取脾脏总RNA，通过逆转录－聚合酶链式反应扩增出分泌型免疫球蛋白M(secretory immunoglobulin M， sIgM)重链基因的核心序列，再应用3'和5'快速扩增cDNA末端方法扩增其末端序列，拼接后获得剑尾鱼sIgM重链全长cDNA序列。

They act as electron-transport agents and play an important role in the electron-transport chains of respiration, photosynthesis, and the microsomal system responsible for the desaturation of fatty acids in heterotroph ic bacteria.

它们作为电子传递物在呼吸电子迁移链、光合作用及微粒体系统中起重要作用，它还负责异养细菌中脂肪酸的去饱和作用。你知道它的英文吗？

In Chapter 5, we gave explicit analytical expressions for generalized Hosoya polynomials of hexagonal chains.

在第五章中，我们给出了苯链的推广Hosoya多项式的分析表达式。

The amount of hexyl is largest in all branched chains. The proportion is 64.97%. There are also exist some butyl (27.39%) and a few ethyl (7.64%).

支链中己基含量最大，为64.97%，同时存在一定量的丁基(27.39%)和少量的乙基(7.64%)。

Superscript 3C NMR spectra for metallocene polyethylenes were measured to confirm the existence of various branches from methyl to hexyl end longer chains and other structural units. DRI from rheological data were used to determine the level of long chain branching in mPEs, and the results were compared with each other.

采用高分辨度(上标 13)C NMR谱直接测定茂金属聚乙烯的支化度及其他微量异种结构单元的组成，并过流变数据获得DRI指数来表徵mPEs长支链结构；对二者的结果进行了比较。

Since the 90's in 20 century, competition is becoming increasingly intensive. Vertical integration is gradually replaced by horizontal integration, and the competition among enterprises has shifted among the supply chains.

20世纪90年代以来，随着竞争的日益激烈，纵向一体化逐渐被横向一体化所取代，企业之间的竞争逐步转向供应链之间的竞争。

Then, three of those hotdog chains are linked together to make an even longer string

接下来，每三个热狗链连在一起为了组成更长的链条

A new analysis system for enrichment of glycoproteins/glycopeptides as well as the identification of glycoproteins/glycosylation sites was also established by coupling enrichment of glycopeptides by hydrazide- functionized magnetic microspheres with release of polysaccharide chains by PNGase F and mass spectrometry as well.

本实验还将肼功能化磁粒富集糖肽方法与糖肽酶酶解、生物质谱等方法相结合，建立起了一套可用于糖蛋白/糖肽分离富集并进行糖蛋白/糖基化位点鉴定的新体系。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。