太阳的典型磁场强度只有地球磁场强度的2倍。
The strength of the sun's magnetic field is typically only about twice as strong as Earth's field.
阿波罗号宇航球带回的月岩石样本证明了在月球上存在着古老的磁场区域，并且磁场强度比地球磁场强度弱一百倍。
Lunar rock samples brought back by the Apollo astronauts provided evidence of an ancient magnetic field on the Moon about 100 times weaker than the Earth's magnetic field.
系统地研究了磁场强度H和焊接电流I对钴基堆焊合金堆焊层硬度和耐磨性的影响，发现当磁场强度H和焊接参数相匹配时，焊缝组织才能获得最佳的细化效果。
This paper discussed the influence of the magnetic field intensity H and welding current I on the hardness and the wear resistance of the Co-based alloys surfacing lager.
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