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2022-11In 1756, Scottish chemist Joseph Blake was the first to quantitatively study the carbon dioxide gas he called "fixed air." Since then, scientists have been looking for ways to measure this gas.One of the earliest carbon diox...
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2022-05Since the 2019 COVID-19 epidemic ravaged the world, the virus has continued to challenge and impact people's daily work and life.At the same time, people have begun to realize the importance of healthy breathing and have begun to...
