Imperfect transmission is the glass or film upon which the emulsion is coated.
涂乳胶的玻璃片或软片不完全透明。
The rutile TiO_2(sulfate process) was treated with inorganic salts to form a porous coated film that increases its dry hiding power in matt emulsion coating films.
硫酸法金红石型二氧化钛用无机盐类进行表面处理后，形成疏松多孔的海绵状包膜，提高了它在平光乳胶漆膜中的干遮盖力。
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