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1.The fusion tube is used to connecttwo circuits together.
融合管用于将两个电路连接在一起。
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2. The engineer designed thefusion tube to improve the efficiency ofthe machine.
工程师设计了融合管,以提高机器的效率。
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3. The fusion tube wasa revolutionary invention that changed the way wecommunicate.
融合管是一种革命性的发明,改变了我们交流的方式。