Beater-sized paper: Paper for which the pulp has been made more or less waterproof by the addition of rosin size and alum to the stock in the beater. It is also called Engine-sized paper.

• 机内施胶纸: 把松香和明矾在打浆时加入马铃薯浆内，使纸具有一些防止洇水性质。