| 释义 |
de·perm
\(ˈ)dē|pərm\ transitive verb
(-ed/-ing/-s)
Etymology: de- + permanent magnetism
: to demagnetize partly (a ship's steel hull) as a precaution against magnetic mines by surrounding in dry dock with a large coil through which is sent an alternating current very strong at first but gradually diminishing in intensity — compare degauss |