名词
中文翻译：双线
同义词：
['double line', 'double track例句：1. The engineers are working on a double-line system to improve the efficiency of the factory.（工程师们正在研究一个双线系统来提高工厂的效率。）2. The construction workers were using double-lines to ensure safety during the excavation process.（建筑工人使用双线来确保挖掘过程中的安全。）']
例句：
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1. The engineers are working on a double-line system to improve the efficiency of the factory.
工程师们正在研究一个双线系统来提高工厂的效率。
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2. The construction workers were using double-lines to ensure safety during the excavation process.
建筑工人使用双线来确保挖掘过程中的安全。
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3. The double-line system is designed to prevent accidents and improve traffic flow.
双线系统旨在预防事故并改善交通流量。