Therefore, the cooling effect of the electromagnet is an important factor to keep the magnetic field 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。
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。
In a common continuous sheet casting apparatus, constant magnetic field of 0.3-1 tesla strength is applied to the cooling section and the crystallizing section.
由普通薄板连铸装置的冷却段及结晶器两侧外加恒定磁场，磁场强度为0.3 ~ 1特斯拉。
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