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2021-08-23
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In five years, 820 million Wenzhou 905 public primary and secondary schools will install air conditioning and fresh air systems
With the progress of society and the improvement of people's health awareness..
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2021-08-23
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Keeping clean air and building a safe campus during the school season under the epidemic situation
The summer vacation is coming to an end....
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2021-08-20
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Repeated refusal to break the epidemic prevention: Children's respiratory health can not be ignored
At present, it is affected by delta mutant strain
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