鱼胶原蛋白在照相底片，生物材料和食品行业有特殊的应用。
The fish collagen has special application in the photographic negative, the biological material and food industry.
首先，把一个照相底片覆盖上感光材料。
First, a photographic plate is coated with a light-sensitive material.
这个过程非常简单，首先，把照相底片用感光材料包裹起来。
The process is very simple. First, a photographic plate is coated with a light sensitive material.
除展商书面要求外，展商所提交的一切材料和制成的广告底片将于场刊印制后毁掉。
Unless with prior written request, all, photos and materials supplied and advertising film produced will be destroyed after the production of Exhibition Catalogue.
除展商书面要求外，展商所提交的一切材料和制成的广告底片将于场刊印制后毁掉。
Unless with prior written request, all, photos and materials supplied and advertising film produced will be destroyed after the production of Exhibition Catalogue.
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