名词
中文翻译：Unknown
同义词：
['blocking operator', 'blocking controller', 'blocking device']
例句：
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1. The block operator was responsible for monitoring the traffic flow.
阻塞操作员负责监控交通流量。
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2. The block operator made sure that all equipment was in proper working order.
阻塞操作员确保所有设备都处于良好工作状态。
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3.The block operator had to manually override the system to prevent a potential accident.
阻塞操作员不得不手动干预系统，以防止潜在的事故。