新型防护面罩 西德法兰克福一家公司研制的防护面罩,既可以防毒,又可以防烟。如果高层建筑发生火灾,烟气充满楼面,只要戴上面罩就不会窒息,可安心待救。这种面罩无论成人或儿童配戴均贴合舒适。 安全电子眼镜 东德一家电器公司最近生产了一种能记录眼睛眨动次数的电子眼镜。机 New protective mask West Germany, Frankfurt developed a protective mask, both anti-virus, but also smoke. If there is a fire in a tall building, the flue gas will fill the floor. As long as the mask is worn, it will not suffocate, and you can feel relieved and relieved. This mask is suitable for both adult and child wear. Electronic safety glasses East Germany, a company that has recently produced an electronic eye can record the number of blinks of electronic glasses. machine