"Shell hydrogen" refers to the companies of the Shell Group that are engaged in the pursuit and development globally of businesses related to hydrogen and fuel cells.

壳牌氢能公司是指壳牌集团下属的、在全球经营和开发氢能和燃料电池相关业务的多家公司。

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In other words, just want to know where the electron is somewhere within the shell radius of the ground state of atomic hydrogen anywhere.

换言之，我只是想知道，电子在哪，可以在氢原子基态下的半径，里面的任何地方。

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Despite the grand vision, however, Shell currently has only six hydrogen filling-stations worldwide.

然而尽管有宏伟的愿景，Shell目前在世界范围内还还只有6个氢汽车燃料补给站。

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The reason is because we already have a full valence shell for our hydrogen, it doesn't want any more electrons.

原因是因为我们的氢,已经有一个排满的价壳层了，它不再需要多余的电子了。

麻省理工公开课 - 化学原理课程节选

In other words, just want to know where the electron is somewhere within the shell radius of the ground state of atomic hydrogen anywhere.

换言之，我只是想知道,电子在哪,可以在氢原子基态下的半径,里面的任何地方。

麻省理工公开课 - 固态化学导论课程节选

So we actually only need two electrons to fill up the valence shell of hydrogen, remember that's because all we need to fill up is the 1 s.

我们其实只需要两个电子,就可以将氢的价壳层排满，要记得这是因为我们只需要排满，1，s，轨道。

麻省理工公开课 - 化学原理课程节选

Then he took over Powerball International, a dormant shell once in the hydrogen business, renamed it Apollo Resources and wound up back in court.

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Shell's gasification technique consists of partially combusting pulverized coal to yield carbon monoxide and hydrogen gas, which combine to form synthetic natural gas.

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