查询词典 sulfur

This paper studied the catalytic transformation performances of hydrocarbon model compounds (such as n-Hexane,cyclohexane,1-Hexene) and sulfur-containing model compounds (such as thiophene,3-methylthiophene and benzothiophene) on ZSM-5 catalysts.

以正己烷、环己烷、1-己烯3种烃类和噻吩、3-甲基噻吩和苯并噻吩三种硫化物为模型化合物，考察了烃及含硫模型化合物在ZSM-5分子筛催化剂上的催化转化性能。

Rhodococcus erythropolis TJQ can use both organic and inorganic sulfur as vegetal sulfide. The strain growing with sodium sulfate can effectively desulfurize benzothiophene DBT and its derivatives 4,6-dimethyldibenzothiophene (4, 6-DMDBT).

实验结果表明，该菌既可以利用有机硫源又可以利用廉价的无机硫源作为生长硫源，以硫酸钠作为硫源培养的菌株可专一性脱除苯并噻吩和DBT及其甲基衍生物4，6-二甲基二苯并噻吩(4，6-DMDBT)中的硫。

Experimental results show that the incorporation of appropriate amounts of Al~2O~3 into SO~4^2^-/ZrO~2, SO~4^2^-/TiO~2 and SO~4^2^-/Fe~2O~3 is helpful for stabilizing the sulfur species and increasing the effective acid sites on the catalyst surfaces, which can improve the strong acidity and catalytic activity in benzoylation.

实验表明，向SO~4^2^-/ZrO~2，SO~4^2^-/TiO~2和SO~4^2^-/Fe~2O~3中引入适量的Al~2O~3，有助于稳定样品表面的含硫物种，增加样品表面的有效酸位，提高样品的强酸性和对甲苯的苯甲酰化的反应活性。

Experimental results show that the incorporation appropriate amount of Al into SO〓〓/ZrO〓, SO〓〓/TiO〓 and SO〓〓/Fe〓O〓 is helpful to stabilize the sulfur species on catalyst surfaces and to improve the superacidity and catalytic activity for benzoylation of toluene with benzoyl chloride.

实验表明，向SO〓〓/ZrO〓、SO〓〓/TiO〓和SO〓〓/Fe〓O〓中引入适量的Al〓O〓，有助于稳定样品表面的硫物种，提高样品的超强酸性和对甲苯的苯甲酰化反应活性。

The doped sulfur may be assigned to a SO4(subscript 2-) bidentate coordinated to TiO2 nanotubes.

结果表明，STNTs的外径为10~20 nm，长200 nm左右；掺杂的硫以SO4(上标 2-)形态键合在TiO2的表面。

It is found that in this structure the molybdenum atom is coordinated by six sulfur atoms of three 1, 1 -dicynoethylene 2 ,2 -dithiolate(i-mnt2 -) ligands and a terminal oxygen atom, forming a distorted pentagonal bipyramidal structure.

结构分析结果说明Mo原子与三个配位基的六个硫原子和一个端基氧形成扭歪五角双锥结构。

This project studies, use PH indicator (bromic phenol orchid with bromic cresol green), to different object face (be like plastic board, ceramic tile of Brown paper, thick hard paper, thick chipboard, china, bathroom and cotton cloth) planar dirt shoe imprints had a test, made with reagent of salt of sulfur cyanic acid quite, discover PH indicator is more effective.

本项目研究，使用PH指示剂，对不同的客体表面（如塑料板、褐色纸张、厚硬纸张、厚硬纸板、瓷器、浴室瓷砖和棉布等）的平面灰尘鞋印进行了试验，并与硫氰酸盐试剂作了比较，发现PH指示剂更为有效。

L and 72L liquefied propane cylinders of liquefied propylene; 18L, 26L, 28L, 35L, 70L, 80L, 105L, 118L Series liquefied bromomethane cylinders; 400L, 800L liquid chlorine, liquid ammonia cylinder; 720L cylinders and three sulfur 926L, 1180L large size cylinders; 40L, 60L, 82L, 118L, 400L, 800L, 926L, F21, F22, R32, R134a refrigerant and other agents and other specifications of industrial gas cylinders.

b。 12.2L、40L液化丙烷和72L液化丙烯钢瓶；18L、26L、28L、35L、70L、80L、105L、118L系列液化溴甲烷钢瓶；400L、800L液氯、液氨钢瓶；720L三氧化硫钢瓶和926L、1180L大规格钢瓶；40L、60L、82L、118L、400L、800L、926L、 F21、F22、R32、R134a等各种制冷剂及其它规格工业气瓶。

On May 1 , I said that after extensive consultation with industry , environmental , and consumer groups , EPA administrator Carol Browner would promulgate a rule to require all passenger vehicles , including gas-guzzling SUVs , to meet the same pollution standards , and that we would cut the sulfur content of gasoline by 90 percent over five years .

5月1日，经过与工业，环境和消费者利益集团的深入磋商，环境保护局长卡罗尔·布朗纳将颁布一项新的规章：要求所有客运车辆，包括那些非常耗油的运动型多功能车，都要达到同样的环保标准；并且在五年内将把汽油中的硫含量减少到原来的90％。

Calid possesses an unusual ability to sniff out hidden sulfur deposits.

卡利德有一种非常特殊的能力，她能嗅到隐藏的硫磺矿。

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.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。