The US aviation regulator has blocked Boeing from expanding production of its most popular plane, citing concerns about the manufacturer’s quality control after a door panel blew out of a 737 Max 9 plane this month.
美国航空监管机构因为担心质量控制问题,而阻止了波音(Boeing)扩大其最畅销飞机的生产。此前,本月一架737 Max 9飞机的门板被风吹落。
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