... primary-secondary clock 子母钟 prime coating 底漆 prime coating 底漆;涂底漆 ...
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... prime coating 底漆 prime coating 底漆；涂底漆 prime coating 底漆涂底漆 ...
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prime paint , base coat
Through the analysis of the failure of paint coating and study of the techniques to prevent the coating from spalling, the phosphorus-based prime coating was selected to solve this problem.
通过对漆膜损坏原因分析及解决漆膜脱落方法研究，确定选用磷化底漆来弥补人工除锈的不足。
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