名词
中文翻译：载人航天器寿命
同义词：
['lifespan', 'mission duration', 'operational life', 'service life']
例句：
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1. The spacecraft's carrier lifetime is expected to exceed ten years.
预计该航天器的载人寿命将超过十年。
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2.The new satellite's carrier lifetime is designed to last at least five years.
新卫星的载人寿命设计至少为五年。
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3.The mission's carrier lifetime will be determined by the number of crew members and their training requirements.
任务的载人寿命将由乘员人数及其培训要求决定。