磁性薄膜的研究，是磁学领域的研究热点。
The research of magnetic films is the focus in magnetism field.
冲绳海槽东槽底平原沉积物含有较多的火山物质，磁学特征与其它沉积环境有明显差异，各磁性参数特征值也明显较强。
According of east abyssal plain of the Okinawa Trough with some volcanic materials, it show strong magnetic characteristics different from other sediment environments.
酸洗或明亮的酸浸，可以删除这个磁性薄膜和恢复非磁学性质。
Pickling or bright dipping in acid can remove this magnetic film and restore the non-magnetic properties.
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