ID 285718297 © Zhan1999 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
von ardenne dresden developing research manufacturing industrial vacuum coating films glass thinfilm photovoltaics german mechanical engineering company institute electron beam ion scientific science evaporation microscopy gdr soviet germany july 2023: manfred focused use beams technical purposes purposes