详细解释:n. 磁场记录计
【电】 磁动图
英语解释：
名词 magnetograph:
a scientific instrument that registers magnetic variations (especially variations of the earth's magnetic field)详细解释：
mag.ne.to.graph
n.（名词）A device for detecting and recording variations in the intensity and direction of magnetic fields.磁场记录仪：用来探测和记录磁场强度的方向和强度的装置