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9 天
扫描电子显微镜(SEM)的早期历史和发展
SEM 的发展始于一片沉寂,而非轰轰烈烈。1935 年,这项技术首次面世时,一群营销专家被要求评估这项新仪器在市场上的潜力。在对科学界进行调查后,营销专家们并不乐观。他们估计,全世界最多需要 10 台这种设备。事实证明,专家们大大低估了 SEM ...
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