形容词
中文翻译：未涂层的
同义词：
['uncoated', 'untreated']
例句：
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1.The steel was uncoated to prevent rusting.
钢材未涂层以防止生锈。
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2. The paint on the walls is uncoated for a fresh look.
墙上的油漆未涂层，以获得新鲜感。
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3. The surface of the metal is uncoated to enhance its durability.
金属表面未涂层，以增强其耐用性。