名词
中文翻译：发射枪
同义词：
['jet gun', 'rocket launcher']
例句：
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1.The ejection gun was used to propel the spacecraft into orbit.
发射枪被用来将宇宙飞船送入轨道。
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2. The military used ejection guns during the Cold War to protect their personnel.
在冷战期间，军方使用发射枪来保护他们的人员。
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3.The astronauts used the ejection gun to escape from the spacecraft in case of emergency.
宇航员们使用发射枪在紧急情况下从宇宙飞船中逃生。