1. Magnetic heading , the compass heading corrected for magnetic deviation but not magnetic variation; thus, the heading relative to magnetic north. 磁航向，修正了磁偏转但未修正磁变，也就是相对于地球的北磁极的航向。
2. The temporal variation of it has secular change, seasonal variation, irregular variation, and other scales variation. 重力场的时变有长期变化、季节性变化、不规则变化和其他多尺度的变化。
3. Continuous variation (quantitative variation; multifactorial inheritance) A form of variation in which the characters show continuous variation within a certain range of values. 变异的一种类型，其性状在一定的范围内是连续变化的。
4. The temporal variation of it has secular change, seasonal variation, irregular variation, and other scales variation. 重力场的时变有长期变化、季节性变化、不规则变化和其他多尺度的变化。
5. The maximum magnetic attraction occurs in the direction of the exterior magnetic field while the magnetic repulsion is in the direction vertical to the exterior magnetic field. 最大磁引力发生在外磁场方向上，而最大磁斥力则发生在与外磁场方向垂直的方向上。
网络释义
electromagnetic separator magnetic cobber magnetic selecting machine magnetic separator magnet s 磁选机;
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