The findings prove that the best protection effects are found in epoxy re sin primer, and its combination of polyurethane top paint.
研究结果表明：环氧底漆和环氧底漆与聚氨酯面漆的组合防护效果最好。
The findings prove that the best protection effects are found in epoxy re sin primer, and its combination of polyurethane top paint.
研究结果表明：环氧底漆和环氧底漆与聚氨酯面漆的组合防护效果最好。
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