名词
中文翻译：火箭发射器
同义词：
['rocket launcher', 'rocket propulsion system例句：1. The spacecraft was launched from the launch pad.（宇宙飞船从发射台发射升空。）']
例句：
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1. The spacecraft was launched from the launch pad.
宇宙飞船从发射台发射升空。
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2. The rhumbatron is responsible for controlling the trajectory of the rocket.
火箭推进系统负责控制火箭的轨迹。
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3. The rhumbatron is a critical component in the launch process.
火箭发射过程中，火箭发射器是关键组件。