| 单词 | relative permeability |
| 释义 | > as lemmasrelative permeability relative permeability n. Physics the ratio of the magnetic permeability of a medium to that of free space or (less commonly) air. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > conducting power > ratio relative permeability1901 1901 T. A. Lyons Treat. Electromagn. Phenomena I. xii. 535 This varying field being measured when iron, nickel, and cobalt successively fills the core, affords numbers, which, compared with air taken as unity and a standard, become ratios denoted by μ, that express the relative permeability of these substances to magnetic induction. 1931 Jrnl. Amer. Philos. Soc. 70 107 Relative permeability μ/ μ0, a number. 2005 J. P. Bentley Princ. Measurem. Syst. (ed. 4) viii. 165 μ is the relative permeability of the circuit material. < as lemmas |
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