名词
中文翻译：反火箭装置单元
同义词：
['reverse rocket unit', 'retrorocket unit']
例句：
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1. Theretrorocket unit is a crucial component inthe spacecraft's propulsionsystem.
反火箭装置单元是航天器推进系统的关键组成部分。
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2. The engineer designed the retrorocket unit to generate thrust in the oppositedirection.
工程师设计了反火箭装置单元，以产生相反方向的推力。
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3. Theretrorocket unit was used to test thespacecraft's stability during its launch.
反火箭装置单元被用于测试航天器发射时的稳定性。