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The contents of sulfur compounds, especially the content of mercaptan, are much more than those in the catalytic gasoline. There is also a big difference in the sulfur contents between 2-methylthiophene and 3-methylthiophene.

研究发现:同其他类型的汽油相比,焦化汽油的硫含量较高且所含硫醇比例明显偏高,2-甲基噻吩和3-甲基噻吩的含量差别较大。

Methods Tissue culture was used to study the cataractous lenses of rats induced by sodium selenite or galactose. At the early stage, the content of nonprotein sulfhydryl, protein sulfhydryl, non-soluble disulfide bond, malonaldehyde and the activities of glutathione peroxidase, glutathione reductase and glutathione-S-transferase were measured in the cataractous lenses, and they were compared with that of the normal lenses. Results The two kinds of material could all induce cataract in rats, sodium selenite being more potent.

采用器官培养方法,以不同浓度亚硒酸钠及半乳糖作用于晶状体,诱发大鼠晶状体形成白内障,在培养初期测定晶状体内非蛋白质巯基(nonprotein sulfhydryl, NP-SH、蛋白质巯基(protein sulfhydryl ,P-SH)和不溶性蛋白质二硫键的含量,脂类过氧化水平,以及与谷胱甘肽代谢有关的谷胱甘肽过氧化物酶(GSH peroxidase, GSH-PX)、谷胱甘肽还原酶(GSH reductase, GSSG-R)及谷胱甘肽硫转移酶(GSH S transferase, GSH-S)的活性。

From May 19 to June 17, 2003, a chemical effect experiment on the Murraya paniculata Oidium. sp was conducted in the areas around the Administration Building, the Chemical Lab Building, the Pond near Teachers' Dormitory and the Libraryin the campus.

于2003年5月19日至6月17日,用70%甲基硫菌灵可湿性粉剂、75%百菌清可湿性粉剂、20%三哩酮超微可湿性粉剂和30波美度的石硫合剂在广西生态工程职业技术学院的学院办公楼前、化学实验楼前、水塘区教工宿舍周围、学院图书馆旁的九里香白粉病Oidium sp。

The results of calculation and measurements have been demonstrated by the experimental researches on photosensitivity and grating performance of chalcogenide fiber.

在详细了解和分析硫系玻璃材料性质的基础上,对硫系光纤的基本特性、特殊工艺、光纤的基本实验方法进行了理论和实验研究。

The effect of the three rotation planting methods on the amount of the available sulphur in the soil was studied.The results indicated that the total available sulphur content under the three different rotation plantin...

施硫可增加小麦的穗长、穗粒数,增加油菜单株结荚数、角果长和角粒数,从而增加了小麦和油菜的产量,施硫45 kg/hm2使小麦、油菜产量的增幅分别为6.5%~17.3%和

So the investigations of REMPI in different systems have comprehensive value in basic field or applied field.In recently years, the photodissociation of sulfur and carbon contained polyatomic molecule has been attracted much attention because these species play a key role in atmospheric physics, environment pollution and ecological preservation.

对含硫、碳化合物的研究在大气物理、环境污染、生态维护和生产应用中具有重要的作用,因此含硫、碳氢化合物的光解离动力学研究受到了较多关注。

The reaction mechanism of thione-thiol tautomerism for 2,6-dithiopurine obtained from proton transfer has been investigated by DFT B3LYP method with 6-311+G basis set. The reaction enthalpies, activation energies, activation free energies and the rate constants of tautomerism were obtained.

采用密度泛函B3LYP方法,在6-311+G基组水平上对2,6-二巯基嘌呤质子转移引起的硫醇式与硫酮式互变异构反应进行了计算研究,获得了互变异构过程的反应焓、活化能、活化吉布斯自由能和质子转移反应的速率常数等性质。

Visible and FTIR spectra of polythionine have been presented in this paper. Based on FTIR spectra, a suggestion for mechanism of polymerization of thionine is presented.

测定了聚硫堇的可见光谱和红外光谱,根据红外光谱,提出了硫堇的电化学聚合机理的假设。

According to the current researches its ingredients are volatile(isothiocyanate,thymol,palmitic acid etc),indole,flavonoid,sitosterol,glucosinolate and some novel compounds; Capparis spinosa possesses other activities,such as antimicrobial and antifungal,anti-inflammatory,antihepatotoxic,antioxidant,hypolipiddemic and hypoglycaemic,diuretic,treating gout.

野西瓜中含有挥发油(异硫氰酸酯、麝香草酚、棕榈酸等)、吲哚类、类黄酮类、谷甾醇类、葡萄糖异硫氰酸盐及一些结构新颖的化合物;野西瓜除具有抗风湿的作用外还具有抗菌、抗炎、抗氧化、抗高血压、降血糖血酯、利尿、治疗痛风等方面的作用。

The alabandite and getchellite of hydrothermal origin, cement anatase of alkaline volcanic origin, and the high content of chlorite in coal were fist found in coals.

在西南地区晚二叠世煤中首次发现了热液成因的硫锰矿和硫砷锑矿、碱性火山灰成因的胶态锐钛矿和陆源碎屑成因的斜绿泥石。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

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