查询词典 sulfur

Anti-knock additive tetraethyl lead,vapor pressure,cetane number and content of aromatic hydrocarbon,ethylenes,sulfur and oxides respectively in the motor fuel are more detailedly analysed in regard to their effect on motor vehicle exhaust emission.

较为详细地分析了燃油中四乙铅抗爆剂、芳烃含量、烯烃含量、硫含量、蒸气压、十六烷值及含氧化合物等对汽车排放的影响，并简述了其发展趋势。

In the occurrence of arcs discharges, spark discharges and corona discharges, sulfur hexafluoride (SF6) would be decomposed to complicated byproducts such as carbon dioxide (CO2), carbon tetrafluoride (CF4), etc.

六氟化硫（SF6）气体在电弧、电火花和电晕放电的作用下会发生分解，产生二氧化碳（CO2）、四氟化碳（CF4）等分解产物。

The major sulfur containing compounds identified in the odor concentrate of cultured prawn were thiazole compounds.

养殖对虾中以GC-MS鉴定的含硫化合物主要是噻唑类化合物。

The experimental results showed that using ionic liquid Et3NHCl-2AlCl3 under the conditions of an extraction temperature of 40℃, an extraction time of 40 min and an agent/oil ratio of 0.02, the sulfur removal rate was more than 90%. The ionic liquids could be used repeatedly for 4 times and the used ionic liquids could be regenerated by vacuum distillation, about 52.34% of the thiophen was recovered during regeneration.

实验结果表明，选用无水AlCl3与Et3NHCl的摩尔比为2.0的离子液体进行萃取脱硫实验，当萃取时间为40 min、温度为40 ℃、剂油体积比为0.02时，脱硫率可达到90%以上；离子液体不仅可以重复使用4次，而且还可以通过减压蒸馏的方法进行再生，在再生过程中可回收约52.34%的噻吩。

It is well known that the main sulfur-containing compounds in FCC gasoline is thiophene and its derivatives with short alkyl chains.

FCC汽油中的硫主要以噻吩类硫化物的形式存在。

The results showed that CrNaY exhibited the best sulfur removal performance, and the removal rate of 2-methyl thiophene was higher than that of thiophene.

实验结果表明，CrNaY对含噻吩和2-甲基噻吩的模型汽油的脱硫效果最好，且对2-甲基噻吩的脱除率大于噻吩脱除率。

In this paper,a combustion—acid-base titrimetry for the determination of sulfur content in silver concentrates is described.

采用燃烧-酸碱滴定法测定银精矿中硫量，该方法简便、快速，准确度高，回收率在98。

Paleoclimate evidence suggests that the Toba eruption, which occurred during the last ice age, emitted lots of sulfur dioxide--vastly more than Mount St. Helens did.

古气候方面的证据显示，多巴火山喷发发生在最后一个冰川期，喷出了大量二氧化硫，远超过圣海伦斯火山的喷发量。

Researchers led by climatologist Alan Robock of Rutgers University in New Brunswick, New Jersey, ran scenarios that featured eruptions producing up to several times more sulfur dioxide than Toba.

研究人员在Alan Robock（新泽西州罗格斯大学新伯朗士威分校的气候学家）的领导下，设立了几个模型，模拟的二氧化硫喷发量比多巴火山多出数倍。

AIM: To probe into the toxicological mechanism of sulfur dioxide (SO2) and its derivatives on cardiovascular system.

目的： 探讨二氧化硫（SO2）及其衍生物对心血管系统的作用机制。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。