dandy roll

dandy-roll的词性：
n.（名词）

1. A cylinder of wire gauze pressed on moist pulp before it starts through the rollers of a papermaking device and resulting in the production of a watermark.Also called dandy roller
水印辊：在润湿的纸浆进入造纸设备的滚筒之前压在其上的金属丝网的圆柱体，结果能产生水印也作 dandy roller