名词
中文翻译：覆盖层
同义词：
['coverage', 'protection layer']
例句：
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1. The new road is designed to provide a good set covering for the city.
这条新路设计得可以很好地为城市提供防护层。
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2. The engineers are working on setting up a new set covering system.
工程师们正在努力建立一个新的防护系统。
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3. The construction crew has been busy setting up the set covering for the new bridge.
施工队一直在忙着为新桥设置防护层。