名词
中文翻译：触发器
同义词：
['trigger', 'trigger point']
例句：
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1. The device has a trigger bit that can be used to start the machine.
这个设备有一个触发器，可以用来启动机器。
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2. The scientist found a trigger bit that could be triggered by a small vibration.
科学家发现了一个可以被小振动触发的触发器。
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3. The engineer designed a trigger bit that would activate the safety mechanism when the door was opened.
工程师设计了一个触发器，当门打开时会激活安全机制。