Such devices also have the advantage of working in the absence of an applied magnetic field.
这样的器件还具有在不施加磁场的情况下工作的优点。
Their unpaired electrons make the atoms behave like tiny permanent magnets that align with and strengthen an applied magnetic field.
它们的未成对电子使原子成为小型的永磁体，它们沿外磁场排列，并因此增强外磁场。
The results show that the torque and the output speed can be adjusted continuously by altering the strength of an applied magnetic field.
研究结果表明：离合器传递的转矩和输出角速度可由外加磁场连续控制。
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