名词
中文翻译：Unknown
同义词：
['segment', 'sector', 'sector gateway例句：1. The architect designed a sector gate for the entrance of the building.（建筑师为大楼入口设计了一个扇形门。）']
例句：
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1. The architect designed a sector gate for the entrance of the building.
建筑师为大楼入口设计了一个扇形门。
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2. The engineer used a sector gate to control access to the restricted area.
工程师使用扇形门来控制对受限区域的访问。
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3. The traffic police installed sector gates at the intersection to improve safety.
交通警察在交叉口安装了扇形门，以改善安全。