Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford American Dictionary

   permanent magnet

   • IPA[ˈpərm(ə)nənt ˈmaɡnət]

   • n.
     a magnet that retains its magnetic properties in the absence of an inducing field or current.

   • noun: permanent magnet, plural noun: permanent magnets