名词
中文翻译：触发针
同义词：
['trigger point', 'trigger pin', 'trigger point pin']
例句：
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1. The device has a trigger pin that can be used to start the machine.
这个设备有一个可以启动机器的触发销。
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2. The scientist found a trigger pin in the old book that could be used to openthe door.
科学家在旧书中找到了一个触发销，可以用来打开门。
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3.The engineer used a trigger pin to test the safety mechanism of the new car.
工程师使用触发销来测试新款汽车的安全机制。