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It is necessary to disinfect mobile phones, and we should also talk about methods! A figure yuanlei teaches you how to do it

Release time:

2024-01-29 09:38

 

It is necessary to disinfect mobile phones, and we should also talk about methods! A figure yuanlei teaches you how to do it

 

The main route of transmission of the new coronavirus is through respiratory droplets and contact. It is necessary to disinfect mobile phones, and it is also necessary to talk about methods! Forward it quickly and let everyone know!

 

To speak, method, spread, necessary, disinfection, mobile phone, main, way, coronavirus

YuanLei little knowledge | The difference between barium sulfate(BaSO4) and barium sulfite(BaSO3)

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The difference between barium sulfate(BaSO4) and barium sulfite(BaSO3)

Different applications and specifications of washed kaolin and calcined kaolin

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Kaolin is a non-metallic mineral, which is a kind of clay and clay rock mainly composed of kaolinite clay minerals. Because it is white and delicate, also known as white earth. It is named after Gaoling Village, Jingdezhen, Jiangxi Province.