High smoothness of the paper, as after \emdash and smoothness low paper or paperboard, after looks, finish is rough surface of the paper or Board for almost all of the absorption.

• 高平滑度的纸张，经上光后效果显著，而平滑度低的纸张或纸板，上光后的效果就较差，因为上光油被粗糙表面的纸张或纸板几乎全部吸收了。