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单词 angstrom
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ang•strom  (angstrəm),USA pronunciation n. (often cap.)
  1. Physics, Weights and Measuresa unit of length, equal to one tenth of a millimicron, or one ten millionth of a millimeter, primarily used to express electromagnetic wavelengths. Symbol: Å;
    Abbr.: A  Also called angstrom u′nit, Angstrom u′nit. 
  • named after A. J. Ångström 1895–1900

Ång•ström  (angstrəm; Swed. ôngstm),USA pronunciation n. An•ders Jo•nas 
    (andərz jōnəs; Swed. änrs yo̅o̅näs),USA pronunciation 
  1. 1814–74, Swedish astronomer and physicist.

Collins Concise English Dictionary © HarperCollins Publishers::
angstrom /ˈæŋstrʌm -strəm/ n
  1. Also called: angstrom unit a unit of length equal to 10–10 metre, used principally to express the wavelengths of electromagnetic radiations. It is equivalent to 0.1 nanometre
    Symbol: Å,
    Symbol: A
Etymology: 20th Century: named after Anders J. Ångström
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