我想看一看船员更换报告。
周三的报告警告说,美国航空航天局目前的预计宇航员团队55 - 60人的规模对可能在生病或受伤的情况下更换船员构成危险。
Wednesday's report warns that Nasa's current projected astronaut corps size of 55-60 could pose a risk to crew replacements in case of illness or injury.
船员实习期满后,公司为其更换水手。机工值班适任证书,并安排船员正式上船工作。
Crew end of the internship, the company replaced its sailors. Competency certificate mechanic on duty and arrange for the formal work on a ship crew.
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