The block becomes magnetic when the current is switched on.
一通上电流，这块板就会有磁性。
Pass a current through an inductor, and you create a magnetic flux.
把电流传给电感器，就会产生磁通量。
The current in the conductor sets up a magnetic field.
导体里的电流形成一个磁场。
The magnetic field of an infinite long straight current has a cylindrical symmetry.
无限长直电流的磁场具有柱对称性。
The secondary current sets up a magnetic field inside the tube .
二次电流在管子内部会产生磁场。
The secondary current sets up a magnetic field inside the tube.
二次电流在管子内部会产生磁场。
The influence of current and frequency on the magnetic field distribution is studied.
通过改变电流和频率，以便找出其对磁场分布的影响。
The three most important effects of an electric current are heating, magnetic and chemical effects.
电流三种最重要的效应是热效应、磁效应和化学效应。
And when you turn the current off, the magnetic field collapses.
当你切断电流，电磁场就消失了。
The coil converts the current into a powerful magnetic field.
线圈则产生强烈的磁场。
Magnetic current converter brake is a new brake with bright prospect.
磁流变制动器是一种具有良好发展前景的新型制动器。
Magnetic current converter brake is a new brake with bright prospect.
磁流变制动器是一种具有良好发展前景的新型制动器。
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