How to clean clothes healthy
Apr 27, 2020

How to clean clothes healthy

In our lives, we generally use laundry detergent or liquid detergent to wash clothes, but these products contain products of...
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Ozone, a new way of sewage treatment
Apr 21, 2020

Ozone, a new way of sewage treatment

With the economic development, the waste water generated in industrial production increases year by year, and the direct discharge of waste water will cause environmental pollution, which has posed a serious ecological and life threat to many areas of the world.

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How can individuals prevent COVID-19? WHO gives 10 basic recommendations
Apr 20, 2020

How can individuals prevent COVID-19? WHO gives 10 basic recommendations

The Director General of the World Health Organization Tan Desai gave advice at a press conference on basic advice on...
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Parents must see! How can children prevent COVID-19?
Apr 20, 2020

Parents must see! How can children prevent COVID-19?

One, often open windows for ventilation. Open windows every morning, evening and night for no less than 30 minutes each...
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