查询词典 sulfureted hydrogen

A mixture of hydrogen and natural gas can also be used.

混合氢气和天然气也可以使用。

The water added in the reaction system was a reactant witch via the water gas shift reaction to generate hydrogen in situ witch in turn is used for residue upgrading.

在本研究的反应体系中，水主要作为一种反应物，与体系中存在的CO通过水—气变换反应现场为渣油加氢提供氢源。

Hydrogen is leaking out and the balloon is descending now. Soon it will fall into the ocean and all the balloonists will be eaten by hungry sharks.

不幸的是，软木塞在气球上打了一个洞，氢气泄漏，气球开始下降，眼看就要落入海中，所有人将要被鲨鱼吃掉。

It is believed that the original oxygen was formed by the separation of water into hydrogen and oxygen molecules in the upper atmosphere.

人们认为最初的氧是由高层大气的水分离为氢和氧分子而形成的。

These results show that there could be at least twice as much hydrogen in the upper atmosphere of Venus than we thought, said Delva.

这些结果显示在金星的上层大气中的含氢量至少是我们估计的两倍。Delva说。

When the molar ratio of tungstic acid∶acidic organic additive∶cyclohexene∶ hydrogen peroxide was 1∶1∶40∶176 (tungstic acid, 2.5 mmol) and the tungstic acid/resorcinol used as catalyst, the isolated yield of adipic acid was up to 90.9% for 8 h.

当使用磺酸水杨酸、草酸、水杨酸为有机酸性添加剂时，随反应时间的增加，己二酸分离产率均升高，但反应 6 h 以后，己二酸分离产率随时间的变化不明显。当磺酸水杨酸用量为 2.5 mmol 时，己二酸分离产率和纯度均较高。

The catalyzed oxidation of cyclohexanol with 30% aqueous hydrogen peroxide by mass fraction to produce adipic acid can be achieved using tungstic acid -acidic additive catalyst system in the absence of organic solvents and phase-transfer reagent.

以钨酸-酸性添加剂为催化体系，在无有机溶剂和相转移剂的情况下，催化30%过氧化氢氧化环己醇合成己二酸。

Cyclohexene ; catalytic oxidation ; tungstic acid ; hydrogen peroxide ; adipic acid

环己烯；催化氧化；钨酸；过氧化氢；己二酸

When the molar ratio of tungstic acid∶acidic organic additive∶cyclohexene∶hydrogen peroxide was 1∶1∶40∶176 (tungstic acid, 2.5 mmol) and the tungstic acid/resorcinol used as catalyst, the isolated yield of adipic acid was up to 90.9% for 8 h.

以钨酸/有机酸性添加剂为催化体系，在无有机溶剂、相转移剂的情况下，催化30%过氧化氢氧化环己烯合成己二酸。

Not only the hydrogen energy is saved, but also the catalyst is composed of transition element.

该方法不仅节省了氢源，而且用普通的过渡元素和主族元素催化剂，避免了对贵金属的依赖。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。