5d light visible during a solar eclipse due to the moo9ns rough surface b?i?y ?b?a?s 8d scientific study of the extraction,refining, aooloying and fabrication of various elements and compounds...
5d electrical activity from the cerebral cortex of a sleeping person a?p?a ?h?t?m 31d positive terminal in an electrolytic cell ?n??? 30a typographical symbol also known as an obelus # ??g?l?...