三烯

In the first part, thirty one new compounds, ferrocenyl aroyl hydrazones,norbornenyl aroyl hydrazones and aryl norbornoyl hydrazones, and forty threecomplexes have been synthesized, and characterized by means of IR,〓,TGA, UV-Vis spectra and molar conductance.

第一部分：共合成了含二茂铁基的芳酰腙、降冰片烯基酰腙等三十一个未见报道的酰腙类化合物，用其中部分酰腙与过渡金属盐和稀土金属盐反应合成了四十余个配合物。

Then, TAMs inhibitory effect united with elemene on MCF7 cell line was analyzed by using CCK8 test.

接种细胞并加入实验药物，用CCK8法检测三苯氧胺联合榄香烯对细胞的增殖抑制效应，用酶标仪在450nm测量每孔吸光度值，计算每组细胞抑制率。

Then, TAMs inhibitory effect united with elemene on MCF7 cell line was analyzed by using CCK8 test.

接种细胞并加入实验药物，用CCK8法检测三苯氧胺联合榄香烯对细胞的增殖抑制效应，用酶标仪在450nm测量每孔吸光度值，每组细胞抑制率。

In this process, we have discovered a three-component tandem reaction leading to the formation of 6-vinyl-1,3a-diazapentalene derivatives.

实验结果表明，在形成可能的中间体B以后，由于烯酮取代基的作用，Michael加成被抑制，进而发生一个三组分串联反应，得到吡咯并咪唑衍生物。

This paper discuss the method and application of polyacrylamide modified by starch, cellulose, chitin respectively.

本文综述了用淀粉、纤维素、壳聚糖这三种天然高分子改性丙烯酰胺的研究和应用情况。

Our puppy and kitten formulas supply natural DHA through easy-to-digest salmon oil, optimizing your pet's potential for a healthy mind and body.DHA is a natural Omega-3 fatty acid critical for brain and vision development.

为幼犬和幼猫配方供应天然DHA通过易于消化的三文鱼油，提高宠物自身的免疫力，二十二碳六烯酸是一种天然ω- 3脂肪酸可以帮助大脑和视力发育。

The triple bond does not usually react so vigorously at a carbon-carbon double bond .

三键在反应时一般不象烯烃中的碳-碳双键那样剧烈。

The facts influencing the high stereoselectivity were discussed. It is proposed that the stability of the tri- molecular transition state or the stereoelectronic effect of the vinyl anion intermediate formed by the nucleophilic addition of halide anion to the electron-deficient carbon- carbon triple bond might be responsible for the high Z-stereoselectivity.

通过对影响反应的高立体选择性因素的研究，认为反应的三分子过渡态的稳定性或生成的烯基负离子中间体的立体电子效应决定了反应的高度Z立体选择性。

As is well-known,the buckminsterfullerene〓was discovered by means ofmass spectrum with laser-evaporation pr...

富勒烯是三连接的笼形分子，其多面体的表面由五元环和六元环构成。

Hexafluoropropene and its derivatives are mainly used in the field of fluorocarbon surfactantve and have a better forground.

六氟丙烯三聚体和其衍生物主要被用在氟碳表面活性剂领域，有较好的发展前景。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐