priming coat英 [ˈpraɪmɪŋ kəʊt]美 [ˈpraɪmɪŋ koʊt]底层（漆），底涂层，头道底漆化学英英释义nounthe first or preliminary coat of paint or size applied to a surfaceSynonym:flat coatgroundprimerprimingprimer coatundercoat
