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What is Round quartz powder?Speherical quartz powder describes amorphous Shi Ying powder material with spheroidal fragments and SiO2 as the major part. It is commonly made use of in high-tech areas such as copper-clad laminate in large integrated cir…
Under the spread of the new crown epidemic, after Americans experienced life and death, they set off the largest "resignation wave" in history, and the number of resignations broke the highest record since statistics began in 2000. Since April this y…
Now China has become a powerful country in science and technology, but do you know how powerful China's technology is? The manned space station alone is not enough, and now it has successfully broken through the key technology of nuclear fusion, even…
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