名词
中文翻译：多级火箭发动机群
同义词：
['multi-stage rocket engine cluster', 'multi-stage rocket engine assembly例句：1. The new multi-stage rocket engine has greatly improved the performance of the spacecraft.（新型多级火箭发动机大大提高了航天器的性能。）']
例句：
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1. The new multi-stage rocket engine has greatly improved the performance of the spacecraft.
新型多级火箭发动机大大提高了航天器的性能。
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2.The development of multi-stage rocket engines is crucial for space exploration.
多级火箭发动机的发展对于太空探索至关重要。
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3. The multi-stage rocket engine cluster was designed to reduce the weight and increase the efficiency of the spacecraft.
多级火箭发动机群的设计旨在减轻重量并提高航天器的工作效率。