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| angstrom (= ангстрем; a metric unit of length equal to one ten billionth of a meter [0.0001 micron]; used to specify wavelengths of electromagnetic radiation) | |||
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| angstrom (= ангстрем; a metric unit of length equal to one ten billionth of a meter [0.0001 micron]; used to specify wavelengths of electromagnetic radiation) | |||