blackingn. 黑色鞋油、黑色塗料塗黑學術名詞塗黑:礦冶工程、鑄造學碳質材料{如石墨等}:金屬材料黑色塗料:金屬材料黑粉料:機械工程英文釋義a substance used to produce a shiny protective surface on footwear