magnetic force 磁力
earth's magnetic field 地球磁场
magnetic north 磁北
magnetic pole 磁极
magnetic induction 磁感应
1. The compass needle points to the Earth's magnetic field.
指南针的指针指向地球的磁场。
2. Scientists measured the strength of the magnetic field near the magnet.
科学家测量了磁铁附近磁场的强度。
3. Magnetic field lines show the direction of magnetic forces.
磁力线显示磁力的方向。
A: How does a magnetic field affect a compass?
A:磁场如何影响指南针?
B: The compass aligns with the magnetic field.
B:指南针会与磁场对齐。
1) 磁力存在的空间
2) 用于描述电磁学现象
3) 地球和设备周围的磁效应
1. 由磁性物体或电流产生的空间区域,在此区域内其他磁性物体或带电粒子会受到磁力作用。
e.g.
The magnetic field around the magnet is very strong.
磁铁周围的磁场非常强。
2. 地球或天体周围产生的自然磁力作用区域。
e.g.
Migratory birds navigate using the Earth's magnetic field.
候鸟利用地球磁场导航。
noun
1. A region around a magnetic material or a moving electric charge within which the force of magnetism acts.
Synonym: magnetosphere, magnetic zone