加压辘：在照相凹版印刷机上，给予压力圆筒额外压力的辊辘。
Back up roller: roller which backs up the impression roller FOR additional pressure in gravure printing.
为了降低墙地砖产品价格，就必须降低生产成本，研制低成本凹版胶辊印花用渗透材料。
For lowering wall ground brick price of article, have to lower production cost, develop low cost and cave version gum Gun stamp-tax to use to permeate material.
为了降低墙地砖产品价格，就必须降低生产成本，研制低成本凹版胶辊印花用渗透材料。
For lowering wall ground brick price of article, have to lower production cost, develop low cost and cave version gum Gun stamp-tax to use to permeate material.
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