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单词 electric quadrupole moment
释义 electric quadrupole moment
[i¦lek·trik `kwä·drǝ´pōl ´mō·mǝnt]
ELECTRICITY
A quantity characterizing an electric charge distribution, obtained by integrating the product of the charge density, the second power of the distance from the origin, and a spherical harmonic Y*2m over the charge distribution.
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