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 paper describes the principle of high pressure gas filling and structure of the system for polystyrene microspheres high pressure hydrogen filling.

概要介绍了微球高压充氢原理及聚苯乙烯塑料微球高压充氢系统。

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According to row the design parameters of hydrogen filling tank, hydrogen electrolysis optimal selection of filling technique route, and puts forward Suggestions on how to optimize.

根据排罐车氢气灌装的设计参数，对电解氢气灌装工艺路线的优化进行选择，并提出优化建议。

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He said technicians are confident that they have fixed the hydrogen leak, which was found while NASA crews were filling the shuttle's external fuel tank.

VOA: standard.2009.06.16

But hydrogen-powered cars cannot exist without hydrogen filling stations, and vice versa.

CNN: Hydrogen fuel-cell cars look to overtake electric autos

"Fueling is particularly difficult because the amount of money that would have to be put in to get hydrogen generated at filling stations is very costly and would require cooperation from everyone from the automaker to the government to the fueling station owners, " See said.

CNN: Hydrogen fuel-cell cars look to overtake electric autos

One promising idea is to extract the hydrogen from natural gas in large reformers located at filling stations, and then store it on board vehicles in solids known as metal hydrides.

ECONOMIST: How green is your hydrogen?