化学

The composition and structure of Soybean Protein Isolate are first introduced,Then the functional modification of SPI via chemical ways which include the reaction of amino group,carboxyl group and sulphydryl group,via enzymic ways which include the modification using transglutaminase enzyme and papain,via physical ways which include blending and heat treatment are reviewed.

首先介绍了大豆分离蛋白的基本组成与结构，然后分别从化学改性、酶改性和物理改性三个方面对大豆分离蛋白改性进行了综述。其中，在化学改性方面，针对大豆分离蛋白中含有的氨基、羧基、巯基等不同活性基团的改性原理及研究现状进行了介绍。在酶改性方面，主要介绍了谷胺酰胺转胺酶、木瓜蛋白酶等对大豆分离蛋白的改性作用。在物理改性方面，介绍了共混、加热改性等目前研究较多的方法。

Block copolymer; multicompartment micelle; computer simulation; dissipative particle dynamics; superstrong segregation regime theory

工程科技I，化学，高分子化学嵌段共聚物；多隔段胶束；计算机模拟；耗散粒子动力学；超强分凝理论

Supramolecular chemistry is one of the most attractive fields in chemistry, life science and materials science.

超分子化学是当前化学、生命科学和材料科学的前沿研究领域之一。

The study on supramolecular chemistry is currently a significant topic of chemistry ...

超分子化学是当前化学与生命科学前言中最重要的研究领域之一。

In this paper, the similarity between the developing history of supramolecular chemistry and of coordination chemistry were discussed briefly.

简短地讨论了超分子化学的发展历史与配位化学发展历史的某些相似性。

Tagal was used to treat haemorrhages and malignant ulcers in India. But, C. tagal has not been investigated phytochemically. In continuation of our studies on Chinese mangrove plants, we examined C.

但是，对C.tagal的化学成分少见报道，为了进一步发现红树植物中代谢产物的结构多样性，我们对中国的红树植物——角果木进行了初步化学研究，角果木采自海南岛的红树林。

Thanks to our strong technical strength, excellent financial capability and stable customer resources, we've successively enhanced cooperation with AMRICAN DOW CHEMICAL COMPANY, CNOOC and Shell Petrochemicals Company Limited and GERMANY BAYER in environmental-friendliness, flame retardation, durability, high-temperature resistance, porous acoustical absorption, shrink resistance, non-toxicity and tastelessness so that our products sell well both at home and abroad.

并且凭借自身精湛的技术力量，雄厚的经济实力和稳定的客户资源，先后与美国陶氏化学有限公司和中海壳牌化学有限公司以及德国拜耳公司加强了对环保阻燃、耐用、耐高、透气性吸音、抗收缩及无毒无味等方面的合作，使产品畅销海内外，同时与温州、上海、北京、杭州及浙南地区1000多家客户建立长期的合作关系，使企业产值与销售额连年出现大幅度增长。

This brings together over 50 years of CFA analysis experience of B+L , formally Technicon Industrial Systems, with SEAL's 25 year track record in discrete analysis, allowing SEAL to offer a truly complimentary solution in Automated Chemical Analysis for environmental and industrial laboratories throughout the world.

将德国布朗卢比50多年的连续流动分析仪（原先TECHNICON工业领域）经验和SEAL公司25年成功的间断化学分析技术结合起来，让我们能为全球环保和工业领域的实验室提供完全的全自动湿化学分析解决方案。

Bycomprehensive use of phytochemical isolation methods, 37 compounds were isolated 5from the methnol-chloroform extract of P. telfairia, by methods of modern spectroscopy,six compounds' structures were elucidated, including 2 kinds of fatty acids, 2 kinds ofsterols and 2 kinds of are esters of sterol and fatty acids. Five of them were reported forthe first time on the chemical constituents' research of P. telfairia. Otherwise, weperformed GC-MS analysis of the volatile fraction in this extracts, the result revealedseveral constituents such as alkyl hydrocarbons and methyl esters of fatty acids.

综合利用各种植物化学分离手段，从海头红的甲醇-氯仿（1 ：1）提取物中分离到单体化合物 37 个，采用多种现代波谱技术手段鉴定了其中 6 个化合物的结构，包括 2 个脂肪酸类成分，2 个甾醇类成分，以及 2 个甾醇的脂肪酸酯，其中 5 个在海头红化学成分研究中为首次报道；另外还对该提取物的挥发性成分作了 GC-MS 分析，显示含有烷烃及脂肪酸甲酯等成分。

Thestercoselectivity of the reaction of propargylide was different completely from that of the reactionof telluronium 3-trimethylsilylalltide with α,β-unsaturaled ketones and trans-trimethysilylacetylenyl-l-benzoyleyelopropane derivatives were obtained.

发现这一反应的立体化学与同样条件下含硅烯丙基碲叶立德和α，β-不饱和酮反应的立体化学完全不同，得到的是又式-2-三甲基硅基乙炔基-1-酮基环丙烷衍生物。

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