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First, a photographic plate is coated with a light-sensitive material.
首先，把一个照相底片覆盖上感光材料。
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Subjecting a sensitive chemical or material to light or other radiant energy.
使敏感的化学品或材料受到光或其它辐射能的照射。
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Subjecting a sensitive chemical or material to light or other radiant energy.
使敏感的化学品或材料受到光或其它辐射能的照射。
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