CEO of Pfizer partner BioNTech says coming winter will be hard but by April, 300 million immunization units should be ready, which will have an impact on the global pandemic.If coronavirus vaccination…
CEO of Pfizer partner BioNTech says coming winter will be hard but by April, 300 million immunization units should be ready, which will have an impact on the global pandemic.If coronavirus vaccination…
Magnesium nitride is an inorganic compound, the chemical formula is Mg3N2, belongs to the cubic crystal system, at room temperature pure magnesium nitride is yellow-green powder but contains a part of the magnesium oxide impurities magnesiu…
To prepare magnesium nitride, the magnesium belt can be burned in nitrogen.…
Magnesium nitride is an inorganic compound composed of nitrogen and magnesium, with a molecular formula of Mg3N2 and a molecular weight of 100.9494. Belongs to the cubic crystal system.…
CEO of Pfizer partner BioNTech says coming winter will be hard but by April, 300 million immunization units should be ready, which will have an impact on the global pandemic.If coronavirus vaccination…
CEO of Pfizer partner BioNTech says coming winter will be hard but by April, 300 million immunization units should be ready, which will have an impact on the global pandemic.If coronavirus vaccination…
At 4:30 on November 24th, the Chang'e-5 probe was successfully launched. As the final battle in the three-step process of my country's lunar exploration project, the Chang'e-5 lunar exploration mis…
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