1·Remanent magnetism of soil layer is taken as a reference frame for locating hydrocarbon seepage zone.
本文利用土壤剩余磁性作为确定烃类渗漏带的参考系。
2·But some of its surface rocks exhibit remanent magnetism indicating that there may have been a global magnetic field early in the Moon's history.
但是它的表面岩石展剩磁，表明有可能是一个全球性的磁场早期在月球的历史。