| 单词 | permanent magnet |
| 释义 | permanent magnet (once / 53970 pages) n WORD FAMILY permanent magnet: permanent magnets USAGE EXAMPLESHyperloop One said it is also experimenting with permanent magnets. Wall Street Journal(May 11, 2016) The hyperloop firms say they can cut the cost by using permanent magnets that use much less energy. Wall Street Journal(Jan 22, 2016) For many years headphone receivers were the simple "Bell" type with permanent magnet, coil and diaphragm. BBC(Jan 10, 2016) n a magnet that retains its magnetism after being removed from a magnetic field Syn|Hypo|Hyper static magnet stud finder a small permanent magnet in a metal container; when the magnet clicks against the container it indicates that the magnet is directly over an iron nail that holds the wallboard to a stud loadstone, lodestonea permanent magnet consisting of magnetite that possess polarity and has the power to attract as well as to be attracted magnetically magnet (physics) a device that attracts iron and produces a magnetic field |
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