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Mostre de compuși ai germaniului preparate de descoperitorul elementului, Clemens Winkler În raportul său Legea Periodică a Elementelor Chimice din 1869, chimistul rus Dâmitri Ivanovici Mendeleev a prezis existența unor elemente chimice necunoscute, inclusiv cea a unui ingredient care ar fi completat un loc vacant în grupa carbonului din Tab
Humidity-defense AR and BBAR coatings can be found for a variety of wavelengths or wavelength ranges inside of CsI’s transmission assortment.Some are created as laser line optics for certain wavelengths, while some operate in extensive wavelength ranges. Notably for components operated at relatively very long wavelengths (mid and much infrared),
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