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单词 paschen-back effect
释义

WordReference Random House Unabridged Dictionary of American English © 2024
Paschen-Back effect′  (päshən bäk),USA pronunciation [Physics.]
  1. Physicsa splitting of spectral lines observed when the source of a radiation is subjected to a strong magnetic field, caused when the vectors associated with the spin and orbital angular momentum exhibit individual rather than common precession. Cf. Zeeman effect. 
  • named after Friedrich Paschen (1865–1947) and Ernst Back (1881–1959), German physicists 1920–25

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