“上胶”造句
要求
上胶辊细腻 、 平滑, 最好是硅橡胶制成的胶辊.
For cots, smoothing, preferably made of silicone rubber rollers.
书芯用纸张不同, 热熔胶的
上胶温度也应有所不同.
Book block paper, hot melt Adhesive glue temperature should also be different.
因此
上胶前一定要将书芯夹实 、 夹紧.
Therefore on glue remember to book block clamp, work holders.