Opinion | Inside Shanghai's Covid-19 Lockdown
https://www.nytimes.com › opinion › sha...
2022年4月5日 — SHANGHAI — The volunteers in full protective gear — called big whites here in China — have packed up and moved on for the day; the apartment ...
When Northwestern researchers Chad Mirkin and David Walker heard about the #PPE shortage in hospitals to address the COVID-19 pandemic, their team sprang into action, demonstrating the ability to generate 1,000 face shields per day — with a single 3D printer. http://spr.ly/61871axzc
shield
a protective plate or screen on machinery or equipment: a face shield is sometimes an integral part of a safety helmet
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