‘부화방탕 대명사’ 북한 2인자 최룡해의 퇴장 [주성하의 ‘北토크’]
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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碎片化的背后，藏着一个被大多数人忽视的机会——编排层。