bar magnet

常见例句

If the bar magnet is simply held stationary near the coil, no current is indicated.
如果磁棒单纯静止在线圈附近，就检测不到电流。
To test the idea, one group of ten pigeons had strong little bar magnets attached to their backs.
为验证这一看法，一组为十只的鸽子背上缚上了强力小磁棒。
The magnetic state of a bar magnet or a horseshoe magnet is extremely complicated.
条形磁铁或马蹄形磁铁的磁态是极其复杂的。
Fluid iron in the planet's core acts like a huge bar magnet, creating a relatively weak magnetic field.
地心处的液态铁就像一个巨大的条形磁铁，会形成相对较弱的磁场。