名词
中文翻译：信号机操作员
同义词：
['signal operator', 'signal controller']
例句：
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1.The signal mechanic was responsible for monitoring trafficsignals.
信号机操作员负责监控交通信号。
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2. The engineer had to consult with thesignal mechanic before making any changes.
工程师在做出任何更改之前必须与信号机操作员协商。
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3. The signal mechanic was thefirst to notice the problem and alertedthe maintenance team.
信号机操作员是第一个注意到这个问题并通知维护团队的人。