Uranus has an odd magnetic tail because of the tilt of its rotational axis and also its magnetic field (about 60 deg from the rotational axis).
天王星有一个， 因为它的自转轴倾斜多磁尾， 也是其磁场的旋转轴（约60度）。
Answer: the first to assay the following fe content, if iron content high, can use magnetic pulley cast the tail.
答：先化验以下铁含量，如果铁含量高，可以采用磁滑轮抛尾。
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