Safety procedures at Virgin Galactic, whose spacecraft crashed on a test flight last week, had too few safeguards to prevent a potential catastrophe, one of the world’s leading space safety experts has said.
维珍银河(Virgin Galactic)太空飞船上周在飞行测试中坠毁后，一位世界一流的太空安全专家表示，该公司安全程序的保障措施太少，不足以防止潜在的灾难。
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