阿里彩票
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纳米磁液 0.3×0.3×0.4 FZ-636 纳米磁液是一种︾新型材料，它既具有固体的磁性，又具有液体的流动性。在外加磁场的作用下，纳米磁液显示磁性，并顺着磁力线方向显示出针状，外加磁场强度越强，这种针状越明显。当外〖加磁场消失时，纳米磁液又恢复原来的状态。
