名词
中文翻译：推进剂切断器
同义词：
['propellant cut-out', 'propellant cut-off device']
例句：
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1.The spacecraft's propellant cut-off system is designed to prevent the fuel from leaking out during launch.
航天器的推进剂切断系统设计用来防止燃料在发射过程中泄漏。
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2.The engineer had to replace the propellant cut-off valve after the engine overheated.
工程师在发动机过热后不得不更换推进剂切断阀。
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3. The team successfully tested a new propellant cut-off mechanism that could reduce the risk of explosions during operation.
团队成功地测试了一种新的推进剂切断机制，可以在操作中减少爆炸的风险。