er meng wang

China

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Hydrofluoric carbide is the main killer that destroys the ozone layer. We must reduce the use of these compounds and protect our ozone layer.
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A Planet for tomorrow


Welcome to our 2018 edition!
It will be a year of significant change for us: the final edition of our poster contest in its current form. You can find the reasons for this decision here, together with the announcement of this year's them. On a practical level, the schedule for the poster contest has condensed into seven months.



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Hydrofluoric carbide(HFCS)

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