US regulators granted the operator of Virgin Galactic’s SpaceShipTwo a licence even though they had spotted failings in its assessment of the potential for human error to cause a catastrophic crash, an investigative hearing has heard.
一调查听证会得知，美国监管机构已向维珍银河(Virgin Galactic)“宇宙飞船2号”(SpaceShipTwo)的运营商发放许可，尽管他们发现该公司在评估人为失误可能导致灾难性坠毁方面存在过失。
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