“permanent magnet”的概念、定义、翻译、参考文献-科学参考

单词	permanent magnet
释义	permanent magnet [`pǝr·mǝ·nǝnt `mag·nǝt] ^{ELECTROMAGNETISM} A piece of hardened steel or other magnetic material that has been strongly magnetized and retains its magnetism indefinitely. Abbreviated PM.
随便看	mill-head ore milli- milliammeter milliampere milliampere-second millibar millibarn millicurie-destroyed millicurie-of-intensity-hour millicycle millidarcy milliequivalent millier millifarad milligal milligauss milligram milligram-hour millihenry millihertz millihg milli-inch milli-k Millikan meter Millikan oil-drop experiment

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