Helium is used to pressurize tanks and help push fuel into the engines. Without proper helium flow, the rocket cannot safely fly. Because the upper stage is hard to reach at the launchpad, NASA rolled the stacked rocket back into the Vehicle Assembly Building, the sky-scraping hangar where it was originally put together.
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和 Author, 麥笛文（Stephen McDonell）,。heLLoword翻译官方下载对此有专业解读
First FT: the day’s biggest stories，更多细节参见WPS官方版本下载
（三）非法运输、买卖、储存、使用少量罂粟壳的。