The launch of a Boeing spacecraft has been called off after an issue was found with a component, hours after US aviation regulators opened their second investigation into the company this year.
美國(guó)航空監(jiān)管機(jī)構(gòu)對(duì)波音(Boeing)展開今年第二次調(diào)查的幾個(gè)小時(shí)后，波音一艘航天器因發(fā)現(xiàn)部件存在問(wèn)題而取消發(fā)射。
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