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『口罩』的空氣過濾的原理和使用口罩時的應注意事項-謝克勤博士 作者:謝克勤博士(Ker-Ching Hsieh,Ph.D) 介紹:謝博士畢業于美國明尼蘇達大學(University of Minnesota)機械系的氣溶膠實驗室(Particle Technology Laboratory : PTL),後服務於美國3M數年,離開3M後,
『口罩』的空氣過濾的原理和使用口罩時的應注意事項-謝克勤博士 作者:謝克勤博士(Ker-Ching Hsieh,Ph.D) 介紹:謝博士畢業于美國明尼蘇達大學(University of Minnesota)機械系的氣溶膠實驗室(Particle Technology Laboratory : PTL),後服務於美國3M數年,離開3M後,
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