名词
中文翻译：多级火箭发动机
同义词：
["multi-stage rocket engine例句：1. The multi-start rocket engine is a key component of the spacecraft's propulsion system.（多级火箭发动机是航天器推进系统的关键技术部件。）"]
例句：
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1. The multi-start rocket engine is a key component of the spacecraft's propulsion system.
多级火箭发动机是航天器推进系统的关键技术部件。
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2. The multi-start rocket engine has been developed to improve the efficiency of space travel.
多级火箭发动机已被开发，以提高太空旅行的效率。
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3.The multi-start rocket engine has been used in various missions, including Mars exploration and deep space exploration.
多级火箭发动机已在各种任务中使用，包括火星探索和深空探索。