PONS OpenDict
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Στείλε μας μια νέα καταχώριση για το PONS OpenDict. Οι προτάσεις ελέγχονται από τη συντακτική ομάδα της PONS και στη συνέχεια περιλαμβάνονται στα αποτελέσματα.
Μονόγλωσσα παραδείγματα (μη ελεγμένα από τη συντακτική ομάδα της PONS)
Ac was that intravenous injection of simple actinium complexes resulted in their accumulation in the bones and liver for a period of tens of years.
en.wikipedia.org Polonium-208 and actinium-227 were also considered as alpha sources.
en.wikipedia.org Actinium is mostly present in uranium-containing, but also in other minerals, though in much smaller quantities.
en.wikipedia.org For example, the alpha-decay of uranium-235 forms thorium-231, while the beta decay of actinium-230 forms thorium-230.
en.wikipedia.org Chemically, actinium is similar to lanthanum, which is explained by their similar ionic radii and electronic structure.
en.wikipedia.org