名词
中文翻译：Unknown
同义词：
['undercoating', 'undercoating process', 'undercoating treatment例句：1. The undercoating layer is crucial for the durability of the paint.（下涂层层对于油漆的耐用性至关重要。）2. During the undercoating process', 'the material is applied in multiple layers to achieve a smooth finish.（在涂覆过程中，材料被应用在多层中以实现平滑的表面。）']
例句：
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1. The undercoating layer is crucial for the durability of the paint.
下涂层层对于油漆的耐用性至关重要。
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2. During the undercoating process, the material is applied in multiple layers to achieve a smooth finish.
在涂覆过程中，材料被应用在多层中以实现平滑的表面。
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3. The undercoating treatment helps to protect the surface from scratches and wear.
涂覆处理有助于保护表面免受刮擦和磨损。