Magnetic mines can similarly be fooled by towed devices containing coils tuned to mimic the magnetic signatures of potential targets.

磁性地雷同样可以被包含线圈的拖曳装置所迷惑，这些线圈经过调谐以模仿潜在目标的磁性特征。

Each type of vessel has its own magnetic signature, depending on the distribution of the steel used in its construction.

每种类型的船只都有自己的磁信号，这取决于其建造中使用的钢材的分布。

If this is the case, researchers could study the magnetic signatures of these early rocks to unveil the history of the martian magnetic field.

如果是这样的话，研究人员可以研究这些早期岩石的磁性特征，以揭示火星磁场的历史。