名词
中文翻译：走私信号盘
同义词：
['sneaking signal disc', "smuggling signal disc例句：1. The police useda shunting signal disc to trackdown the suspect.（警方使用走私信号盘来追踪嫌疑人。）2. The ship's captain hada shunting signal disc that coulddetect underwater objects.（船长的船配备了一个走私信号盘，可以探测水下物体。）"]
例句：
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1. The police useda shunting signal disc to trackdown the suspect.
警方使用走私信号盘来追踪嫌疑人。
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2. The ship's captain hada shunting signal disc that coulddetect underwater objects.
船长的船配备了一个走私信号盘，可以探测水下物体。
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3.The shunting signal disc was acrucial tool in the investigation of the missingtreasure.
走私信号盘是调查失踪宝藏的关键工具。