名词短语中文翻译
中文翻译：自我维持的按钮
同义词：
['self-contained', 'self-powered', 'self-operating']
例句：
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1. Theself-maintained push-button system ensures that the device can operate without external power sources.
这种自我维持的按钮系统确保设备在没有外部电源的情况下也能运行。
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2. The self-powered car has a unique feature that allows it to run on its own without needing a gas tank.
这种自给自足的汽车有一个独特的特性，允许它不需要油箱就能运行。
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3.The self-operating machine is designed to perform tasks independently, without human intervention.
这种自操作的机器被设计成能够独立执行任务，无需人工干预。