地磁 dìcí geomagnetism Definitions Defs Origin Strokes Stroke Words Sentences Sents 地磁场 dìcíchǎng geomagnetic field the magnetic field of the Earth; the space in and around the planet affected by its magnetism古地磁 gǔdìcí paleomagnetism the study of the record of the Earth's magnetic field in rocks, sediment, or archeological materials
