底涂的作用是极其重要的。
如果污迹依然很明显，则需再上一层底涂。
If the stain is still very evident, it would take to a layer of primer.
涂适量在干净的皮肤上，早晚使用，可以用在妆底。
Apply to clean skin in the morning and evening. May be used under makeup.
提出了将底胶涂于镍表面的涂胶新工艺。
A new process of rubber covering on the surface of nickel is given.
提出了将底胶涂于镍表面的涂胶新工艺。
A new process of rubber covering on the surface of nickel is given.
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