Therefore, the cooling effect of the electromagnet is an important factor to keep the magneticfield strength not decreasing rapidly.
因此，电磁铁好的冷却散热效果是保持其场强不急剧减弱的重要因素。
2
The use of laser cooling atomic beam technique can greatly reduce this aberration and makes the magnetic lens a useful tool in the field of atomic optics.
应用激光冷却技术能使这一影响减小，从而使磁透镜在原子光学领域得到更广泛的应用。
3
In a common continuous sheet casting apparatus, constant magneticfield of 0.3-1 tesla strength is applied to the cooling section and the crystallizing section.