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A large number of disposable lunch boxes are often used during disaster relief,however,casual discard of these non environmental-friendly lunch boxes is regarded as waste and caused critical pollution. We will cover the lid of a disposable lunch box with a layer of fluorescent material, during the day time, it will absorb of sunlight automatically. And when the night comes, it will emit fluorescence which brings light to the disaster area. So as to facilitate the night activities of the people in the disaster area, and let people in the dark becomes less fear.
Shenyang City, China