magnetic variation英 [mæɡˈnetɪk ˌveəriˈeɪʃn]美 [mæɡˈnetɪk ˌveriˈeɪʃn]偏(磁)差电力英英释义nounthe angle (at a particular location) between magnetic north and true northSynonym:magnetic declinationvariation双语例句