ethyl red मीनिंग इन हिंदी

उदाहरण वाक्य

1. In 1901, Miethe had introduced " Ethyl Red ", a sensitizing dye that greatly improved the characteristics of panchromatically sensitized photographic emulsions, which in turn obviated the very long exposures previously needed to photograph red-filtered images, simplified color filter design, and generally cleared the path for future progress.