Tantalum carbide is a light brown metallic cubic crystalline powder, belonging to the sodium chloride type cubic crystal system. At present, tantalum carbide is also used as a cemented carbide sintered crystal grain growth inhibitor, which h…
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…
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…
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