如超过最大重涂间隔，须磨粗表面，以确保漆膜间的附着力。
If maximum recoat interval is exceeded, roughen the film surface to ensure the adhesion between layers.
如超过最大重涂间隔，须磨粗表面，以确保漆膜间的附着力。
If maximum recoat is exceed, roughening of the surface is necessary to ensure intercoat adhesion.
目前，国内管道混凝土配重涂敷厂的生产装备基本为国外进口。
At present, the domestic production lines for concrete weight coating of submarine pipeline are basically imported.
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