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.
BBC behind-the-scenes as Oscar nominees lunch together
。同城约会对此有专业解读
朝新去的是秭归县郭家坝镇王家岭村的沙大湾，“伦晚”橙子的主产区。他写道：对于大多数果树来说，都逃不开春季开花、秋季落果的自然规律，花与果从不相见。但秭归伦晚却打破这一常规，四季“伦”回，大器“晚”橙。它在万物复苏的春季里一边开花一边结果，形成了“花果同枝，两代同树”的奇观。
It is worth noting, too, that humans often follow a less rigorous process compared to the clean room rules detailed in this blog post, that is: humans often download the code of different implementations related to what they are trying to accomplish, read them carefully, then try to avoid copying stuff verbatim but often times they take strong inspiration. This is a process that I find perfectly acceptable, but it is important to take in mind what happens in the reality of code written by humans. After all, information technology evolved so fast even thanks to this massive cross pollination effect.