Glue: Adhesive substance resembling gelatin, extracted from animal tissue, particularly hides and bones, or from fish, casein (milk protein), or vegetables.
动物胶：从动物或鱼的皮、骨、酪蛋白中提炼出来的明胶状黏结剂。
An exceptionally clear adhesive can be made from fish and was the first adhesive used for photographic emulsions for photo film and photo resist coatings for photoengraving processes.
从鱼身上可以提取制成极其透明的粘胶，在胶片的感光乳胶和光刻蚀工艺的光阻涂层中首先被用作粘合剂。
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